Copying files from remote side failed - TTerminal::FileModified

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.9.3

Error message:
Copying files from remote side failed.

Invalid access to memory.

Stack trace:
(003E5744) System::UStrAsg
(00866422) C5073_3
(0086848A) ____ExceptionHandler
(00865244) __ExceptionHandler
(0003EE3E) ntdll.dll.ZwWow64CallFunction64
(0003F5BA) ntdll.dll.KiUserExceptionDispatcher
(00776535) TTerminal::FileModified
(00779B1D) TTerminal::DeleteFileW
(00768959) TSFTPFileSystem::SFTPSink
(007630B2) TSFTPFileSystem::SFTPSinkRobust
(00762EA6) TSFTPFileSystem::CopyToLocal
(00787B79) TTerminal::CopyToLocal
(0000DDD1) TCustomScpExplorerForm::ExecuteFileOperation
(0000EAB8) TCustomScpExplorerForm::ExecuteFileOperation
(0000EB3F) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003776F) TNonVisualDataModule::ExplorerActionsExecute
(003B521C) System::Actions::TContainedActionList::ExecuteAction
(0019C395) Vcl::Actnlist::TCustomAction::Execute
(00373100) System::Classes::_18201
(00007E6F) USER32.DLL.CallNextHookEx
(000080CC) USER32.DLL
(0000966A) USER32.DLL
(000096DB) USER32.DLL.DispatchMessageW

(00866A8D) C5073_3
(00868067) _ReThrowException
(00763114) TSFTPFileSystem::SFTPSinkRobust
(00762EA6) TSFTPFileSystem::CopyToLocal
(00787B79) TTerminal::CopyToLocal
(0000DDD1) TCustomScpExplorerForm::ExecuteFileOperation
(0000EAB8) TCustomScpExplorerForm::ExecuteFileOperation
(0000EB3F) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003776F) TNonVisualDataModule::ExplorerActionsExecute
(003B521C) System::Actions::TContainedActionList::ExecuteAction
(0019C395)%

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.11.3

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(0032CB98) System::Internal::Strhlpr::UnicodeAssign
(0089D34A) C5067_0
(0089F3B2) ____ExceptionHandler
(0089C16C) __ExceptionHandler
(00046186) ntdll.dll.RtlRaiseStatus
(00046012) ntdll.dll.KiUserExceptionDispatcher
(0079E379) TTerminal::FileModified
(007A47B3) TTerminal::MoveFileW
(007A0E83) TTerminal::ProcessFiles
(007A494B) TTerminal::MoveFiles
(00015144) TCustomScpExplorerForm::RemoteTransferFiles
(0000EF2B) TCustomScpExplorerForm::ExecuteFileOperation
(0000F11C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F1A3) TCustomScpExplorerForm::ExecuteFileOperationCommand
(000385A3) TNonVisualDataModule::ExplorerActionsExecute
(003BDE00) System::Actions::TContainedActionList::ExecuteAction
(001A4F39) Vcl::Actnlist::TCustomAction::Execute
(0037BCBC) System::Classes::_18201
(0001B4E4) USER32.dll
(0001B5E2) USER32.dll
(0001BC14) USER32.dll
(0001BC6B) USER32.dll.DispatchMessageW

(0032CB98) System::Internal::Strhlpr::UnicodeAssign
(0089D34A) C5067_0
(0089F3B2) ____ExceptionHandler
(0089C16C) __ExceptionHandler
(00046186) ntdll.dll.RtlRaiseStatus
(00046012) ntdll.dll.KiUserExceptionDispatcher
(0079E379) TTerminal::FileModified
(007A47B3) TTerminal::MoveFileW
(007A0E83) TTerminal::ProcessFiles
(007A494B) TTerminal::MoveFiles
(00015144) TCustomScpExplorerForm::Remo

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.13

Error message:
Acceso a memoria no válido

Traza de la pila:
(003F1370) System::UStrAsg
(008B9FD2) C5101_3
(008BC03A) ____ExceptionHandler
(008B8DF4) __ExceptionHandler
(00088D1F) ntdll.dll
(0006FC11) ntdll.dll.KiUserExceptionDispatcher
(007BA3EF) TTerminal::FileModified
(007BDB21) TTerminal::DeleteFileW
(007BCF33) TTerminal::ProcessFiles
(007BDDD0) TTerminal::DeleteFiles
(00014ABF) TCustomScpExplorerForm::DeleteFiles
(0000F214) TCustomScpExplorerForm::ExecuteFileOperation
(0000F4B4) TCustomScpExplorerForm::ExecuteFileOperation
(0000F53B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(000380EA) TNonVisualDataModule::ExplorerActionsExecute
(003C0E58) System::Actions::TContainedActionList::ExecuteAction
(001A6C39) Vcl::Actnlist::TCustomAction::Execute

(003F1370) System::UStrAsg
(008B9FD2) C5101_3
(008BC03A) ____ExceptionHandler
(008B8DF4) __ExceptionHandler
(00088D1F) ntdll.dll
(0006FC11) ntdll.dll.KiUserExceptionDispatcher
(007BA3EF) TTerminal::FileModified
(007BDB21) TTerminal::DeleteFileW
(007BCF33) TTerminal::ProcessFiles
(007BDDD0) TTerminal::DeleteFiles
(00014ABF) TCustomScpExplorerForm::DeleteFiles
(0000F214) TCustomScpExplorerForm::ExecuteFileOperation
(0000F4B4) TCustomScpExplorerForm::ExecuteFileOperation
(0000F53B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(000380EA) TNonVisualDataModule::ExplorerActionsExecute
(003C0E58) System::Actions::TContainedActionList::ExecuteAction
(001A6C39) Vcl::Actnlist::TCustomAction::Execute

(008BA63D) C5101_3
(008BBC17) _ReThrowException
(007BD14C) TTerminal::ProcessFiles
(007BDDD0) TTerminal::DeleteFiles
(00014ABF) TCustomScpExplorerForm::DeleteFiles
(0000F214) TCustomScpExplorerForm::ExecuteFileOperation
(0000F4B4) TCustomScpExplorerForm::ExecuteFileOperation
(0000F53B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(000380EA) TNonVisualDataModule::ExplorerActionsExecute
(003C0E58) System::Actions::TContainedActionList::ExecuteAction
(001A6C39) Vcl::Actnlist::TCustomAction::Execute

(008BA63D) C5101_3
(008BBC17) _ReThrowException
(00014B5E) TCustomScpExplorerForm::DeleteFiles
(0000F214) TCustomScpExplorerForm::ExecuteFileOperation
(0000F4B4) TCustomScpExplorerForm::ExecuteFileOperation
(0000F53B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(000380EA) TNonVisualDataModule::ExplorerActionsExecute
(003C0E58) System::Actions::TContainedActionList::ExecuteAction
(001A6C39) Vcl::Actnlist::TCustomAction::Execute

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.11.3

Error message:
Naruszenie ochrony pamęci.

Stack trace:
(003EE334) System::UStrAsg
(0089D34A) C5067_0
(0089F3B2) ____ExceptionHandler
(0089C16C) __ExceptionHandler
(00088DBF) ntdll.dll
(0006FCB1) ntdll.dll.KiUserExceptionDispatcher
(0079E379) TTerminal::FileModified
(007A1A6D) TTerminal::DeleteFileW
(007A0E83) TTerminal::ProcessFiles
(007A1D1C) TTerminal::DeleteFiles
(00014787) TCustomScpExplorerForm::DeleteFiles
(0000EE7C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F11C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F1A3) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037E72) TNonVisualDataModule::ExplorerActionsExecute
(003BDE00) System::Actions::TContainedActionList::ExecuteAction
(001A4F39) Vcl::Actnlist::TCustomAction::Execute

(003EE334) System::UStrAsg
(0089D34A) C5067_0
(0089F3B2) ____ExceptionHandler
(0089C16C) __ExceptionHandler
(00088DBF) ntdll.dll
(0006FCB1) ntdll.dll.KiUserExceptionDispatcher
(0079E379) TTerminal::FileModified
(007A1A6D) TTerminal::DeleteFileW
(007A0E83) TTerminal::ProcessFiles
(007A1D1C) TTerminal::DeleteFiles
(00014787) TCustomScpExplorerForm::DeleteFiles
(0000EE7C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F11C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F1A3) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037E72) TNonVisualDataModule::ExplorerActionsExecute
(003BDE00) System::Actions::TContainedActionList::ExecuteAction
(001A4F39) Vcl::Actnlist::TCustomAction::Execute

(0089D9B5) C5067_0
(0089EF8F) _ReThrowException
(007A109C) TTerminal::ProcessFiles
(007A1D1C) TTerminal::DeleteFiles
(00014787) TCustomScpExplorerForm::DeleteFiles
(0000EE7C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F11C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F1A3) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037E72) TNonVisualDataModule::ExplorerActionsExecute
(003BDE00) System::Actions::TContainedActionList::ExecuteAction
(001A4F39) Vcl::Actnlist::TCustomAction::Execute

(0089D9B5) C5067_0
(0089EF8F) _ReThrowException
(00014826) TCustomScpExplorerForm::DeleteFiles
(0000EE7C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F11C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F1A3) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037E72) TNonVisualDataModule::ExplorerActionsExecute
(003BDE00) System::Actions::TContainedActionList::ExecuteAction
(001A4F39) Vcl::Actnlist::TCustomAction::Execute

The problem happens rarely. I cannot reproduce it.

I worked normal with some SFTP and marked two files. Then suddenly the message appeared, that the connection is lost and I confirm the reconnect. After successfull reconnect, I press DEL key on keyboard, because the files were still marked. And then I got this error message.
Win 10/64bit. Happy debugging.

WinSCP 5.13.1

Error message:
Zugriffsverletzung - ungültiger Zugriff auf den Speicher.

Stack trace:
(003F13BC) System::UStrAsg
(008BA3F6) C5101_0
(008BC45E) ____ExceptionHandler
(008B9218) __ExceptionHandler
(00088DEF) ntdll.dll
(0006FCE1) ntdll.dll.KiUserExceptionDispatcher
(007BA675) TTerminal::FileModified
(007BDE9D) TTerminal::DeleteFileW
(007BD2AF) TTerminal::ProcessFiles
(007BE14C) TTerminal::DeleteFiles
(00014ABF) TCustomScpExplorerForm::DeleteFiles
(0000F214) TCustomScpExplorerForm::ExecuteFileOperation
(0000F4B4) TCustomScpExplorerForm::ExecuteFileOperation
(0000F53B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037E85) TNonVisualDataModule::ExplorerActionsExecute
(003C0EA4) System::Actions::TContainedActionList::ExecuteAction
(001A6C85) Vcl::Actnlist::TCustomAction::Execute
(0037ED60) System::Classes::_18201
(0001D0B9) USER32.dll
(00027844) USER32.dll
(0002A140) USER32.dll
(000180D7) USER32.dll
(00017C1B) USER32.dll.DispatchMessageW

(003F13BC) System::UStrAsg
(008BA3F6) C5101_0
(008BC45E) ____ExceptionHandler
(008B9218) __ExceptionHandler
(00088DEF) ntdll.dll
(0006FCE1) ntdll.dll.KiUserExceptionDispatcher
(007BA675) TTerminal::FileModified
(007BDE9D) TTerminal::DeleteFileW
(007BD2AF) TTerminal::ProcessFiles
(007BE14C) TTerminal::DeleteFiles
(00014ABF) TCustomScpExplorerForm::DeleteFiles
(0000F214) TCustomScpExplorerForm::ExecuteFileOperation
(0000F4B4) TCustomScpExplorerForm::ExecuteFileOperation
(0000F53B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037E85) TNonVisualDataModule::ExplorerActionsExecute
(003C0EA4) System::Actions::TContainedActionList::ExecuteAction
(001A6C85) Vcl::Actnlist::TCustomAction::Execute
(0037ED60) System::Classes::_18201
(0001D0B9) USER32.dll
(00027844) USER32.dll
(0002A140) USER32.dll
(000180D7) USER32.dll
(00017C1B) USER32.dll.DispatchMessageW

(008BAA61) C5101_0
(008BC03B) _ReThrowException
(007BD4C8) TTerminal::ProcessFiles
(007BE14C) TTerminal::DeleteFiles
(00014ABF) TCustomScpExplorerForm::DeleteFiles
(0000F214) TCustomScpExplorerForm::ExecuteFileOperation
(0000F4B4) TCustomScpExplorerForm::ExecuteFileOperation
(0000F53B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037E85) TNonVisualDataModule::ExplorerActionsExecute
(003C0EA4) System::Actions::TContainedActionList::ExecuteAction
(001A6C85) Vcl::Actnlist::TCustomAction::Execute
(0037ED60) System::Classes::_18201
(0001D0B9) USER32.dll
(00027844) USER32.dll
(0002A140) USER32.dll
(000180D7) USER32.dll
(00017C1B) USER32.dll.DispatchMessageW

(008BAA61) C5101_0
(008BC03B) _ReThrowException
(00014B5E) TCustomScpExplorerForm::DeleteFiles
(0000F214) TCustomScpExplorerForm::ExecuteFileOperation
(0000F4B4) TCustomScpExplorerForm::ExecuteFileOperation
(0000F53B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037E85) TNonVisualDataModule::ExplorerActionsExecute
(003C0EA4) System::Actions::TContainedActionList::ExecuteAction
(001A6C85) Vcl::Actnlist::TCustomAction::Execute
(0037ED60) System::Classes::_18201
(0001D0B9) USER32.dll
(00027844) USER32.dll
(0002A140) USER32.dll
(000180D7) USER32.dll
(00017C1B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.13.4

Error message:
Invalid access to memory.

Stack trace:
(003F343E) System::UStrAsg
(008BDC8E) C5104_3
(008BFCF6) ____ExceptionHandler
(008BCAB0) __ExceptionHandler
(0007DAFF) ntdll.dll
(0006B711) ntdll.dll.KiUserExceptionDispatcher
(007BDA49) TTerminal::FileModified
(007C1289) TTerminal::DeleteFileW
(007C069B) TTerminal::ProcessFiles
(007C1538) TTerminal::DeleteFiles
(00014B3B) TCustomScpExplorerForm::DeleteFiles
(0000F2A8) TCustomScpExplorerForm::ExecuteFileOperation
(0000F530) TCustomScpExplorerForm::ExecuteFileOperation
(0000F5B7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00038F0A) TNonVisualDataModule::ExplorerActionsExecute
(003C2E64) System::Actions::TContainedActionList::ExecuteAction
(001A8C45) Vcl::Actnlist::TCustomAction::Execute

(003F343E) System::UStrAsg
(008BDC8E) C5104_3
(008BFCF6) ____ExceptionHandler
(008BCAB0) __ExceptionHandler
(0007DAFF) ntdll.dll
(0006B711) ntdll.dll.KiUserExceptionDispatcher
(007BDA49) TTerminal::FileModified
(007C1289) TTerminal::DeleteFileW
(007C069B) TTerminal::ProcessFiles
(007C1538) TTerminal::DeleteFiles
(00014B3B) TCustomScpExplorerForm::DeleteFiles
(0000F2A8) TCustomScpExplorerForm::ExecuteFileOperation
(0000F530) TCustomScpExplorerForm::ExecuteFileOperation
(0000F5B7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00038F0A) TNonVisualDataModule::ExplorerActionsExecute
(003C2E64) System::Actions::TContainedActionList::ExecuteAction
(001A8C45) Vcl::Actnlist::TCustomAction::Execute

(008BE2F9) C5104_3
(008BF8D3) _ReThrowException
(007C08B4) TTerminal::ProcessFiles
(007C1538) TTerminal::DeleteFiles
(00014B3B) TCustomScpExplorerForm::DeleteFiles
(0000F2A8) TCustomScpExplorerForm::ExecuteFileOperation
(0000F530) TCustomScpExplorerForm::ExecuteFileOperation
(0000F5B7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00038F0A) TNonVisualDataModule::ExplorerActionsExecute
(003C2E64) System::Actions::TContainedActionList::ExecuteAction
(001A8C45) Vcl::Actnlist::TCustomAction::Execute

(008BE2F9) C5104_3
(008BF8D3) _ReThrowException
(00014BDA) TCustomScpExplorerForm::DeleteFiles
(0000F2A8) TCustomScpExplorerForm::ExecuteFileOperation
(0000F530) TCustomScpExplorerForm::ExecuteFileOperation
(0000F5B7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00038F0A) TNonVisualDataModule::ExplorerActionsExecute
(003C2E64) System::Actions::TContainedActionList::ExecuteAction
(001A8C45) Vcl::Actnlist::TCustomAction::Execute

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
Contact to server allowed only few minutes -> need for resuming access
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.13.7

Error message:
Invalid access to memory.

Stack trace:
(003F3798) System::UStrAsg
(008BF00E) C5105_0
(008C1076) ____ExceptionHandler
(008BDE30) __ExceptionHandler
(0007E16F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(007BEBE9) TTerminal::FileModified
(007C50EB) TTerminal::MoveFileW
(007C183B) TTerminal::ProcessFiles
(007C5283) TTerminal::MoveFiles
(00015564) TCustomScpExplorerForm::RemoteTransferFiles
(0000F3C3) TCustomScpExplorerForm::ExecuteFileOperation
(0000F59C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F623) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003974F) TNonVisualDataModule::ExplorerActionsExecute
(003C31E0) System::Actions::TContainedActionList::ExecuteAction
(001A8FC1) Vcl::Actnlist::TCustomAction::Execute
(0038109C) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

(003F3798) System::UStrAsg
(008BF00E) C5105_0
(008C1076) ____ExceptionHandler
(008BDE30) __ExceptionHandler
(0007E16F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(007BEBE9) TTerminal::FileModified
(007C50EB) TTerminal::MoveFileW
(007C183B) TTerminal::ProcessFiles
(007C5283) TTerminal::MoveFiles
(00015564) TCustomScpExplorerForm::RemoteTransferFiles
(0000F3C3) TCustomScpExplorerForm::ExecuteFileOperation
(0000F59C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F623) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003974F) TNonVisualDataModule::ExplorerActionsExecute
(003C31E0) System::Actions::TContainedActionList::ExecuteAction
(001A8FC1) Vcl::Actnlist::TCustomAction::Execute
(0038109C) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

(008BF679) C5105_0
(008C0C53) _ReThrowException
(007C1A54) TTerminal::ProcessFiles
(007C5283) TTerminal::MoveFiles
(00015564) TCustomScpExplorerForm::RemoteTransferFiles
(0000F3C3) TCustomScpExplorerForm::ExecuteFileOperation
(0000F59C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F623) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003974F) TNonVisualDataModule::ExplorerActionsExecute
(003C31E0) System::Actions::TContainedActionList::ExecuteAction
(001A8FC1) Vcl::Actnlist::TCustomAction::Execute
(0038109C) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

(008BF679) C5105_0
(008C0C53) _ReThrowException
(00015638) TCustomScpExplorerForm::RemoteTransferFiles
(0000F3C3) TCustomScpExplorerForm::ExecuteFileOperation
(0000F59C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F623) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003974F) TNonVisualDataModule::ExplorerActionsExecute
(003C31E0) System::Actions::TContainedActionList::ExecuteAction
(001A8FC1) Vcl::Actnlist::TCustomAction::Execute
(0038109C) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I was moving multiple files on a remote server into a non-existing directory which I include when asked for the target directory.

WinSCP 5.15.3

Error message:
Invalid access to memory.

Stack trace:
(0035388C) System::Internal::Strhlpr::UnicodeAssign
(0092770A) C5157_3
(00929772) ____ExceptionHandler
(0092652C) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(0081B32D) TTerminal::FileModified
(008220E3) TTerminal::MoveFileW
(0081E24F) TTerminal::ProcessFiles
(0082227B) TTerminal::MoveFiles
(00016748) TCustomScpExplorerForm::RemoteTransferFiles
(000105F3) TCustomScpExplorerForm::ExecuteFileOperation
(0001070C) TCustomScpExplorerForm::ExecuteFileOperation
(00010793) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00042ABA) TNonVisualDataModule::ExplorerActionsExecute
(003E7824) System::Actions::TContainedActionList::ExecuteAction
(001C640D) Vcl::Actnlist::TCustomAction::Execute
(003A3E00) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

(0035388C) System::Internal::Strhlpr::UnicodeAssign
(0092770A) C5157_3
(00929772) ____ExceptionHandler
(0092652C) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(0081B32D) TTerminal::FileModified
(008220E3) TTerminal::MoveFileW
(0081E24F) TTerminal::ProcessFiles
(0082227B) TTerminal::MoveFiles
(00016748) TCustomScpExplorerForm::RemoteTransferFiles
(000105F3) TCustomScpExplorerForm::ExecuteFileOperation
(0001070C) TCustomScpExplorerForm::ExecuteFileOperation
(00010793) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00042ABA) TNonVisualDataModule::ExplorerActionsExecute
(003E7824) System::Actions::TContainedActionList::ExecuteAction
(001C640D) Vcl::Actnlist::TCustomAction::Execute
(003A3E00) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

(00927D75) C5157_3
(0092934F) _ReThrowException
(0081E461) TTerminal::ProcessFiles
(0082227B) TTerminal::MoveFiles
(00016748) TCustomScpExplorerForm::RemoteTransferFiles
(000105F3) TCustomScpExplorerForm::ExecuteFileOperation
(0001070C) TCustomScpExplorerForm::ExecuteFileOperation
(00010793) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00042ABA) TNonVisualDataModule::ExplorerActionsExecute
(003E7824) System::Actions::TContainedActionList::ExecuteAction
(001C640D) Vcl::Actnlist::TCustomAction::Execute
(003A3E00) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

(00927186) __DynamicCastVCLptr
(0092770A) C5157_3
(00929772) ____ExceptionHandler
(0092652C) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(00016748) TCustomScpExplorerForm::RemoteTransferFiles
(000105F3) TCustomScpExplorerForm::ExecuteFileOperation
(0001070C) TCustomScpExplorerForm::ExecuteFileOperation
(00010793) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00042ABA) TNonVisualDataModule::ExplorerActionsExecute
(003E7824) System::Actions::TContainedActionList::ExecuteAction
(001C640D) Vcl::Actnlist::TCustomAction::Execute
(003A3E00) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

(00927D75) C5157_3
(0092934F) _ReThrowException
(0001681C) TCustomScpExplorerForm::RemoteTransferFiles
(000105F3) TCustomScpExplorerForm::ExecuteFileOperation
(0001070C) TCustomScpExplorerForm::ExecuteFileOperation
(00010793) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00042ABA) TNonVisualDataModule::ExplorerActionsExecute
(003E7824) System::Actions::TContainedActionList::ExecuteAction
(001C640D) Vcl::Actnlist::TCustomAction::Execute
(003A3E00) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(0041919A) System::UStrAsg
(00F87E4E) C5296_0
(00F89EB6) ____ExceptionHandler
(00F86C70) __ExceptionHandler
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(00D90D71) TTerminal::FileModified
(00D94A5C) TTerminal::DeleteFileW
(00D93E03) TTerminal::ProcessFiles
(00D94F74) TTerminal::DeleteFiles
(00016154) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00043F66) TNonVisualDataModule::ExplorerActionsExecute
(003E84EC) System::Actions::TContainedActionList::ExecuteAction
(001C70D5) Vcl::Actnlist::TCustomAction::Execute
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

(0041919A) System::UStrAsg
(00F87E4E) C5296_0
(00F89EB6) ____ExceptionHandler
(00F86C70) __ExceptionHandler
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(00D90D71) TTerminal::FileModified
(00D94A5C) TTerminal::DeleteFileW
(00D93E03) TTerminal::ProcessFiles
(00D94F74) TTerminal::DeleteFiles
(00016154) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00043F66) TNonVisualDataModule::ExplorerActionsExecute
(003E84EC) System::Actions::TContainedActionList::ExecuteAction
(001C70D5) Vcl::Actnlist::TCustomAction::Execute
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

(00F884B9) C5296_0
(00F89A93) _ReThrowException
(00D94015) TTerminal::ProcessFiles
(00D94F74) TTerminal::DeleteFiles
(00016154) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00043F66) TNonVisualDataModule::ExplorerActionsExecute
(003E84EC) System::Actions::TContainedActionList::ExecuteAction
(001C70D5) Vcl::Actnlist::TCustomAction::Execute
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

(00F884B9) C5296_0
(00F89A93) _ReThrowException
(000161F3) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00043F66) TNonVisualDataModule::ExplorerActionsExecute
(003E84EC) System::Actions::TContainedActionList::ExecuteAction
(001C70D5) Vcl::Actnlist::TCustomAction::Execute
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Selected 9'000 remote files. Pressed delete. Message box appears asking "Do you want to delete those 9'000 files?". While the message box was opened, the computer went to sleep overnight. Next day, computer wakes up, message box is still there. I click "OK". Then this error appeared.

WinSCP 5.17.9

Error message:
Invalid access to memory.

Stack trace:
(0041A004) System::UStrAsg
(00F89F32) C5296_0
(00F8BF9A) ____ExceptionHandler
(00F88D54) __ExceptionHandler
(0008771F) ntdll.dll
(000740A1) ntdll.dll.KiUserExceptionDispatcher
(00D92D89) TTerminal::FileModified
(00D96A74) TTerminal::DeleteFileW
(00D95E1B) TTerminal::ProcessFiles
(00D96F8C) TTerminal::DeleteFiles
(00016154) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00043A84) TNonVisualDataModule::ExplorerActionsExecute
(003E9378) System::Actions::TContainedActionList::ExecuteAction

(0041A004) System::UStrAsg
(00F89F32) C5296_0
(00F8BF9A) ____ExceptionHandler
(00F88D54) __ExceptionHandler
(0008771F) ntdll.dll
(000740A1) ntdll.dll.KiUserExceptionDispatcher
(00D92D89) TTerminal::FileModified
(00D96A74) TTerminal::DeleteFileW
(00D95E1B) TTerminal::ProcessFiles
(00D96F8C) TTerminal::DeleteFiles
(00016154) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00043A84) TNonVisualDataModule::ExplorerActionsExecute
(003E9378) System::Actions::TContainedActionList::ExecuteAction

(00F8A59D) C5296_0
(00F8BB77) _ReThrowException
(00D9602D) TTerminal::ProcessFiles
(00D96F8C) TTerminal::DeleteFiles
(00016154) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00043A84) TNonVisualDataModule::ExplorerActionsExecute
(003E9378) System::Actions::TContainedActionList::ExecuteAction

(00F8A59D) C5296_0
(00F8BB77) _ReThrowException
(000161F3) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00043A84) TNonVisualDataModule::ExplorerActionsExecute
(003E9378) System::Actions::TContainedActionList::ExecuteAction

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.21.5

Error message:
Accesso alla memoria non valido.

Stack trace:
(0043DE88) System::UStrAsg
(00FDC86E) C5412_0
(00FDE8D6) ____ExceptionHandler
(00FDB690) __ExceptionHandler
(00087B7F) ntdll.dll
(00074001) ntdll.dll.KiUserExceptionDispatcher
(00DE0139) TTerminal::FileModified
(00DE3D94) TTerminal::DeleteFileW
(00DE313B) TTerminal::ProcessFiles
(00DE42AC) TTerminal::DeleteFiles
(00017484) TCustomScpExplorerForm::DeleteFiles
(0001188D) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001194A) TCustomScpExplorerForm::ExecuteFileOperation
(00011B41) TCustomScpExplorerForm::ExecuteFileOperation
(00011CFF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004843B) TNonVisualDataModule::ExplorerActionsExecute
(0040D60C) System::Actions::TContainedActionList::ExecuteAction
(001CF6F9) Vcl::Actnlist::TCustomAction::Execute
(003C9C0C) System::Classes::_18201
(00040519) USER32.dll
(000374E5) USER32.dll
(00035235) USER32.dll
(00034FFB) USER32.dll.DispatchMessageW

(0043DE88) System::UStrAsg
(00FDC86E) C5412_0
(00FDE8D6) ____ExceptionHandler
(00FDB690) __ExceptionHandler
(00087B7F) ntdll.dll
(00074001) ntdll.dll.KiUserExceptionDispatcher
(00DE0139) TTerminal::FileModified
(00DE3D94) TTerminal::DeleteFileW
(00DE313B) TTerminal::ProcessFiles
(00DE42AC) TTerminal::DeleteFiles
(00017484) TCustomScpExplorerForm::DeleteFiles
(0001188D) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001194A) TCustomScpExplorerForm::ExecuteFileOperation
(00011B41) TCustomScpExplorerForm::ExecuteFileOperation
(00011CFF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004843B) TNonVisualDataModule::ExplorerActionsExecute
(0040D60C) System::Actions::TContainedActionList::ExecuteAction
(001CF6F9) Vcl::Actnlist::TCustomAction::Execute
(003C9C0C) System::Classes::_18201
(00040519) USER32.dll
(000374E5) USER32.dll
(00035235) USER32.dll
(00034FFB) USER32.dll.DispatchMessageW

(00FDCED9) C5412_0
(00FDE4B3) _ReThrowException
(00DE334D) TTerminal::ProcessFiles
(00DE42AC) TTerminal::DeleteFiles
(00017484) TCustomScpExplorerForm::DeleteFiles
(0001188D) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001194A) TCustomScpExplorerForm::ExecuteFileOperation
(00011B41) TCustomScpExplorerForm::ExecuteFileOperation
(00011CFF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004843B) TNonVisualDataModule::ExplorerActionsExecute
(0040D60C) System::Actions::TContainedActionList::ExecuteAction
(001CF6F9) Vcl::Actnlist::TCustomAction::Execute
(003C9C0C) System::Classes::_18201
(00040519) USER32.dll
(000374E5) USER32.dll
(00035235) USER32.dll
(00034FFB) USER32.dll.DispatchMessageW

(00FDCED9) C5412_0
(00FDE4B3) _ReThrowException
(00017523) TCustomScpExplorerForm::DeleteFiles
(0001188D) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001194A) TCustomScpExplorerForm::ExecuteFileOperation
(00011B41) TCustomScpExplorerForm::ExecuteFileOperation
(00011CFF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004843B) TNonVisualDataModule::ExplorerActionsExecu

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.1.2

Error message:
Invalid access to memory.

Stack trace:
(00295ABE) System::UStrAsg
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(00DFFB7D) TTerminal::FileModified
(00E038DD) TTerminal::DoDeleteFile
(00E03793) TTerminal::DeleteFileW
(00E02C03) TTerminal::ProcessFiles
(00E03E04) TTerminal::DeleteFiles
(00018711) TCustomScpExplorerForm::DeleteFiles
(00011F90) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012046) TCustomScpExplorerForm::ExecuteFileOperation
(0001224C) TCustomScpExplorerForm::ExecuteFileOperation
(0001240B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004DFA5) TNonVisualDataModule::ExplorerActionsExecute
(0026344C) System::Actions::TContainedActionList::ExecuteAction
(00347061) Vcl::Actnlist::TCustomAction::Execute
(0021564C) System::Classes::_18201
(0003FF49) USER32.dll
(00036EF5) USER32.dll
(00034C65) USER32.dll
(00034A2B) USER32.dll.DispatchMessageW

(00295ABE) System::UStrAsg
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(00DFFB7D) TTerminal::FileModified
(00E038DD) TTerminal::DoDeleteFile
(00E03793) TTerminal::DeleteFileW
(00E02C03) TTerminal::ProcessFiles
(00E03E04) TTerminal::DeleteFiles
(00018711) TCustomScpExplorerForm::DeleteFiles
(00011F90) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012046) TCustomScpExplorerForm::ExecuteFileOperation
(0001224C) TCustomScpExplorerForm::ExecuteFileOperation
(0001240B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004DFA5) TNonVisualDataModule::ExplorerActionsExecute
(0026344C) System::Actions::TContainedActionList::ExecuteAction
(00347061) Vcl::Actnlist::TCustomAction::Execute
(0021564C) System::Classes::_18201
(0003FF49) USER32.dll
(00036EF5) USER32.dll
(00034C65) USER32.dll
(00034A2B) USER32.dll.DispatchMessageW

(01004455) C6083_0
(01005A2F) _ReThrowException
(00E02E15) TTerminal::ProcessFiles
(00E03E04) TTerminal::DeleteFiles
(00018711) TCustomScpExplorerForm::DeleteFiles
(00011F90) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012046) TCustomScpExplorerForm::ExecuteFileOperation
(0001224C) TCustomScpExplorerForm::ExecuteFileOperation
(0001240B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004DFA5) TNonVisualDataModule::ExplorerActionsExecute
(0026344C) System::Actions::TContainedActionList::ExecuteAction
(00347061) Vcl::Actnlist::TCustomAction::Execute
(0021564C) System::Classes::_18201
(0003FF49) USER32.dll
(00036EF5) USER32.dll
(00034C65) USER32.dll
(00034A2B) USER32.dll.DispatchMessageW

(01004455) C6083_0
(01005A2F) _ReThrowException
(00018ACD) TCustomScpExplorerForm::DeleteFiles
(00011F90) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012046) TCustomScpExplorerForm::ExecuteFileOperation
(0001224C) TCustomScpExplorerForm::ExecuteFileOperation
(0001240B) TCustomScpExplorerForm::Execut

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.1.2

Error message:
Invalid access to memory.

Stack trace:
(00295A9C) System::UStrAsg
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A6F) ntdll.dll
(000740C1) ntdll.dll.KiUserExceptionDispatcher
(00DFFB7D) TTerminal::FileModified
(00E038DD) TTerminal::DoDeleteFile
(00E03793) TTerminal::DeleteFileW
(00E02C03) TTerminal::ProcessFiles
(00E03E04) TTerminal::DeleteFiles
(00018711) TCustomScpExplorerForm::DeleteFiles
(00011F90) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012046) TCustomScpExplorerForm::ExecuteFileOperation
(0001224C) TCustomScpExplorerForm::ExecuteFileOperation
(0001240B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004D89C) TNonVisualDataModule::ExplorerActionsExecute
(0026344C) System::Actions::TContainedActionList::ExecuteAction

(00295A9C) System::UStrAsg
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A6F) ntdll.dll
(000740C1) ntdll.dll.KiUserExceptionDispatcher
(00DFFB7D) TTerminal::FileModified
(00E038DD) TTerminal::DoDeleteFile
(00E03793) TTerminal::DeleteFileW
(00E02C03) TTerminal::ProcessFiles
(00E03E04) TTerminal::DeleteFiles
(00018711) TCustomScpExplorerForm::DeleteFiles
(00011F90) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012046) TCustomScpExplorerForm::ExecuteFileOperation
(0001224C) TCustomScpExplorerForm::ExecuteFileOperation
(0001240B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004D89C) TNonVisualDataModule::ExplorerActionsExecute
(0026344C) System::Actions::TContainedActionList::ExecuteAction

(01004455) C6083_0
(01005A2F) _ReThrowException
(00E02E15) TTerminal::ProcessFiles
(00E03E04) TTerminal::DeleteFiles
(00018711) TCustomScpExplorerForm::DeleteFiles
(00011F90) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012046) TCustomScpExplorerForm::ExecuteFileOperation
(0001224C) TCustomScpExplorerForm::ExecuteFileOperation
(0001240B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004D89C) TNonVisualDataModule::ExplorerActionsExecute
(0026344C) System::Actions::TContainedActionList::ExecuteAction

(01004455) C6083_0
(01005A2F) _ReThrowException
(00018ACD) TCustomScpExplorerForm::DeleteFiles
(00011F90) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012046) TCustomScpExplorerForm::ExecuteFileOperation
(0001224C) TCustomScpExplorerForm::ExecuteFileOperation
(0001240B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004D89C) TNonVisualDataModule::ExplorerActionsExecute
(0026344C) System::Actions::TContainedActionList::ExecuteAction

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.3.4

Error message:
Accès mémoire invalide.

Trace de la pile :
(002A7EBE) System::UStrAsg
(00E22DAE) C6612_0
(00E24E16) ____ExceptionHandler
(00E21BD0) __ExceptionHandler
(00087FFF) ntdll.dll
(00074531) ntdll.dll.KiUserExceptionDispatcher
(00C661C9) TTerminal::FileModified
(00C69E22) TTerminal::DoDeleteFile
(00C69CF4) TTerminal::DeleteFileW
(00C6918B) TTerminal::ProcessFiles
(00C6A330) TTerminal::DeleteFiles
(000192D1) TCustomScpExplorerForm::DeleteFiles
(00012AEA) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012B9E) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004F388) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction

(002A7EBE) System::UStrAsg
(00E22DAE) C6612_0
(00E24E16) ____ExceptionHandler
(00E21BD0) __ExceptionHandler
(00087FFF) ntdll.dll
(00074531) ntdll.dll.KiUserExceptionDispatcher
(00C661C9) TTerminal::FileModified
(00C69E22) TTerminal::DoDeleteFile
(00C69CF4) TTerminal::DeleteFileW
(00C6918B) TTerminal::ProcessFiles
(00C6A330) TTerminal::DeleteFiles
(000192D1) TCustomScpExplorerForm::DeleteFiles
(00012AEA) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012B9E) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004F388) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction

(00E23419) C6612_0
(00E249F3) _ReThrowException
(00C6939D) TTerminal::ProcessFiles
(00C6A330) TTerminal::DeleteFiles
(000192D1) TCustomScpExplorerForm::DeleteFiles
(00012AEA) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012B9E) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004F388) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction

(00E23419) C6612_0
(00E249F3) _ReThrowException
(0001968D) TCustomScpExplorerForm::DeleteFiles
(00012AEA) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(00012B9E) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004F388) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction

Appeared when I deleted folders and files on the server part (right)

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.3.4

Error message:
Invalid access to memory.

Stack trace:
(002A7EBE) System::UStrAsg
(00E22DAE) C6612_0
(00E24E16) ____ExceptionHandler
(00E21BD0) __ExceptionHandler
(00087FFF) ntdll.dll
(00074531) ntdll.dll.KiUserExceptionDispatcher
(00C661C9) TTerminal::FileModified
(00C6DC5C) TTerminal::DoMoveFile
(00C6DD10) TTerminal::MoveFileW
(00C6918B) TTerminal::ProcessFiles
(00C6DDE2) TTerminal::MoveFiles
(0001A419) TCustomScpExplorerForm::RemoteTransferFiles
(00012C27) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FC57) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction
(003595AD) Vcl::Actnlist::TCustomAction::Execute
(00226F2C) System::Classes::_18201
(00040819) USER32.dll
(00036F65) USER32.dll
(0003589C) USER32.dll
(000353BB) USER32.dll.DispatchMessageW

(002A7EBE) System::UStrAsg
(00E22DAE) C6612_0
(00E24E16) ____ExceptionHandler
(00E21BD0) __ExceptionHandler
(00087FFF) ntdll.dll
(00074531) ntdll.dll.KiUserExceptionDispatcher
(00C661C9) TTerminal::FileModified
(00C6DC5C) TTerminal::DoMoveFile
(00C6DD10) TTerminal::MoveFileW
(00C6918B) TTerminal::ProcessFiles
(00C6DDE2) TTerminal::MoveFiles
(0001A419) TCustomScpExplorerForm::RemoteTransferFiles
(00012C27) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FC57) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction
(003595AD) Vcl::Actnlist::TCustomAction::Execute
(00226F2C) System::Classes::_18201
(00040819) USER32.dll
(00036F65) USER32.dll
(0003589C) USER32.dll
(000353BB) USER32.dll.DispatchMessageW

(00E23419) C6612_0
(00E249F3) _ReThrowException
(00C6939D) TTerminal::ProcessFiles
(00C6DDE2) TTerminal::MoveFiles
(0001A419) TCustomScpExplorerForm::RemoteTransferFiles
(00012C27) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FC57) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction
(003595AD) Vcl::Actnlist::TCustomAction::Execute
(00226F2C) System::Classes::_18201
(00040819) USER32.dll
(00036F65) USER32.dll
(0003589C) USER32.dll
(000353BB) USER32.dll.DispatchMessageW

(00E23419) C6612_0
(00E249F3) _ReThrowException
(0001A4EB) TCustomScpExplorerForm::RemoteTransferFiles
(00012C27) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FC57) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction
(003595AD) Vcl::Actnlist::TCustomAction::Execute
(00226F2C) System::Clas

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
I was connected to an SFTP server, and I was trying to move a selection of remote files to a different folder. I had done the same operation multiple times before, but this time when I tried it I got an error that I had been disconnected. i reconnected my session, and when I retried the operation I got this error.

I believe this can be reproduced but not consistently.

<If relevant, consider attaching a session log file or a screenshot)>


WinSCP 6.3.2

Error message:
Invalid access to memory.

Stack trace:
(002A7F68) System::UStrAsg
(00E21702) C6608_3
(00E2376A) ____ExceptionHandler
(00E20524) __ExceptionHandler
(00098D8F) ntdll.dll
(000781B1) ntdll.dll.KiUserExceptionDispatcher
(00C64E75) TTerminal::FileModified
(00C6C908) TTerminal::DoMoveFile
(00C6C9BC) TTerminal::MoveFileW
(00C67E37) TTerminal::ProcessFiles
(00C6CA8E) TTerminal::MoveFiles
(0001A419) TCustomScpExplorerForm::RemoteTransferFiles
(00012C27) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FA73) TNonVisualDataModule::ExplorerActionsExecute
(002757F0) System::Actions::TContainedActionList::ExecuteAction
(00359731) Vcl::Actnlist::TCustomAction::Execute
(00226F88) System::Classes::_18201
(00032161) USER32.dll
(00022F51) USER32.dll
(00021810) USER32.dll
(0002135B) USER32.dll.DispatchMessageW

(002A7F68) System::UStrAsg
(00E21702) C6608_3
(00E2376A) ____ExceptionHandler
(00E20524) __ExceptionHandler
(00098D8F) ntdll.dll
(000781B1) ntdll.dll.KiUserExceptionDispatcher
(00C64E75) TTerminal::FileModified
(00C6C908) TTerminal::DoMoveFile
(00C6C9BC) TTerminal::MoveFileW
(00C67E37) TTerminal::ProcessFiles
(00C6CA8E) TTerminal::MoveFiles
(0001A419) TCustomScpExplorerForm::RemoteTransferFiles
(00012C27) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FA73) TNonVisualDataModule::ExplorerActionsExecute
(002757F0) System::Actions::TContainedActionList::ExecuteAction
(00359731) Vcl::Actnlist::TCustomAction::Execute
(00226F88) System::Classes::_18201
(00032161) USER32.dll
(00022F51) USER32.dll
(00021810) USER32.dll
(0002135B) USER32.dll.DispatchMessageW

(00E21D6D) C6608_3
(00E23347) _ReThrowException
(00C68049) TTerminal::ProcessFiles
(00C6CA8E) TTerminal::MoveFiles
(0001A419) TCustomScpExplorerForm::RemoteTransferFiles
(00012C27) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FA73) TNonVisualDataModule::ExplorerActionsExecute
(002757F0) System::Actions::TContainedActionList::ExecuteAction
(00359731) Vcl::Actnlist::TCustomAction::Execute
(00226F88) System::Classes::_18201
(00032161) USER32.dll
(00022F51) USER32.dll
(00021810) USER32.dll
(0002135B) USER32.dll.DispatchMessageW

(00E2117E) __DynamicCastVCLptr
(00E21702) C6608_3
(00E2376A) ____ExceptionHandler
(00E20524) __ExceptionHandler
(00098D8F) ntdll.dll
(000781B1) ntdll.dll.KiUserExceptionDispatcher
(0001A419) TCustomScpExplorerForm::RemoteTransferFiles
(00012C27) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FA73) TNonVisualDataModule::ExplorerActionsExecute
(002757F0)%2

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

@bmercer: Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.