Hi!
I wanted to calculate the size of the backup folder. It is huge so I went away for some hours. After coming back there was no size (still unbekannt/unknown) so i clicked theberechnen button again resulting in the error message.
--------------

WinSCP 6.5.5

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(00C4C8D0) UnixIncludeTrailingBackslash
(00EF74C2)
(00EF953A)
(00EF62E4) __ExceptionHandler
(000B332F) ntdll.dll
(0007A56A) ntdll.dll.KiUserExceptionDispatcher
(00C56906) TRemoteFileList::GetFullDirectory
(00C562C6) TRemoteFile::GetFullFileName
(00D40A24) TTerminal::CalculateFileSize
(00D40634) TTerminal::DoCalculateFileSize
(00D3DAFF) TTerminal::ProcessFiles
(00D40F56) TTerminal::CalculateFilesSize
(0001AF77) TCustomScpExplorerForm::CalculateSize
(00DE1775) TPropertiesDialog::CalculateSizeButtonClick
(0039E91B) Vcl::Controls::TControl::Click
(003A356D) Vcl::Controls::TWinControl::WndProc
(003C7B74) Vcl::Stdctrls::TButtonControl::WndProc
(003A36C7) Vcl::Controls::_17122
(003A356D) Vcl::Controls::TWinControl::WndProc
(003A2A78) Vcl::Controls::TWinControl::MainWndProc
(00204C90) System::Classes::_18364
(00038991) USER32.dll
(00026AE8) USER32.dll
(0002658B) USER32.dll
(00032DF7) USER32.dll
(0007A544) ntdll.dll.KiUserCallbackDispatcher
(0003FFC3) USER32.dll
(000262B1) USER32.dll.SendMessageW
(00073DE1) COMCTL32.DLL
(000893F7) COMCTL32.DLL
(00038991) USER32.dll
(00026AE8) USER32.dll
(00026255) USER32.dll.CallWindowProcW
(003A3675) Vcl::Controls::TWinControl::DefaultHandler
(003A356D) Vcl::Controls::TWinControl::WndProc
(003C7B74) Vcl::Stdctrls::TButtonControl::WndProc
(00204C90) System::Classes::_18364
(00038991) USER32.dll
(00026AE8) USER32.dll
(00025F75) USER32.dll
(00025ADB) USER32.dll.DispatchMessageW

(00C4C8D0) UnixIncludeTrailingBackslash
(00EF74C2)
(00EF953A)
(00EF62E4) __ExceptionHandler
(000B332F) ntdll.dll
(0007A56A) ntdll.dll.KiUserExceptionDispatcher
(00C56906) TRemoteFileList::GetFullDirectory
(00C562C6) TRemoteFile::GetFullFileName
(00D40A24) TTerminal::CalculateFileSize
(00D40634) TTerminal::DoCalculateFileSize
(00D3DAFF) TTerminal::ProcessFiles
(00D40F56) TTerminal::CalculateFilesSize
(0001AF77) TCustomScpExplorerForm::CalculateSize
(00DE1775) TPropertiesDialog::CalculateSizeButtonClick
(0039E91B) Vcl::Controls::TControl::Click
(003A356D) Vcl::Controls::TWinControl::WndProc
(003C7B74) Vcl::Stdctrls::TButtonControl::WndProc
(003A36C7) Vcl::Controls::_17122
(003A356D) Vcl::Controls::TWinControl::WndProc
(003A2A78) Vcl::Controls::TWinControl::MainWndProc
(00204C90) System::Classes::_18364
(00038991) USER32.dll
(00026AE8) USER32.dll
(0002658B) USER32.dll
(00032DF7) USER32.dll
(0007A544) ntdll.dll.KiUserCallbackDispatcher
(0003FFC3) USER32.dll
(000262B1) USER32.dll.SendMessageW
(00073DE1) COMCTL32.DLL
(000893F7) COMCTL32.DLL
(00038991) USER32.dll
(00026AE8) USER32.dll
(00026255) USER32.dll.CallWindowProcW
(003A3675) Vcl::Controls::TWinControl::DefaultHandler
(003A356D) Vcl::Controls::TWinControl::WndProc
(003C7B74) Vcl::Stdctrls::TButtonControl::WndProc
(00204C90) System::Classes::_18364
(00038991) U

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 6.5.3

Error message:
メモリのアクセス違反

スタック トレース:
(00C4B374) UnixIncludeTrailingBackslash
(00EF5B8E)
(00EF7C06)
(00EF49B0) __ExceptionHandler
(000B204F) ntdll.dll
(0007AF3A) ntdll.dll.KiUserExceptionDispatcher
(00C5539A) TRemoteFileList::GetFullDirectory
(00D39045) TTerminal::FileModified
(00D40D74) TTerminal::DoMoveFile
(00D40E28) TTerminal::MoveFileW
(00D3C1DB) TTerminal::ProcessFiles
(00D40EFA) TTerminal::MoveFiles
(0001A99E) TCustomScpExplorerForm::RemoteTransferFiles
(00012F67) TCustomScpExplorerForm::ExecuteFileOperation
(00013118) TCustomScpExplorerForm::ExecuteFileOperation
(000132D7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00051AED) TNonVisualDataModule::ExplorerActionsExecute
(00221750) System::Actions::TContainedActionList::ExecuteAction
(0038A959) Vcl::Actnlist::TCustomAction::Execute
(00204B78) System::Classes::_18364
(00038D01) USER32.dll
(00026E78) USER32.dll
(00026305) USER32.dll
(00025E6B) USER32.dll.DispatchMessageW

(00C4B374) UnixIncludeTrailingBackslash
(00EF5B8E)
(00EF7C06)
(00EF49B0) __ExceptionHandler
(000B204F) ntdll.dll
(0007AF3A) ntdll.dll.KiUserExceptionDispatcher
(00C5539A) TRemoteFileList::GetFullDirectory
(00D39045) TTerminal::FileModified
(00D40D74) TTerminal::DoMoveFile
(00D40E28) TTerminal::MoveFileW
(00D3C1DB) TTerminal::ProcessFiles
(00D40EFA) TTerminal::MoveFiles
(0001A99E) TCustomScpExplorerForm::RemoteTransferFiles
(00012F67) TCustomScpExplorerForm::ExecuteFileOperation
(00013118) TCustomScpExplorerForm::ExecuteFileOperation
(000132D7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00051AED) TNonVisualDataModule::ExplorerActionsExecute
(00221750) System::Actions::TContainedActionList::ExecuteAction
(0038A959) Vcl::Actnlist::TCustomAction::Execute
(00204B78) System::Classes::_18364
(00038D01) USER32.dll
(00026E78) USER32.dll
(00026305) USER32.dll
(00025E6B) USER32.dll.DispatchMessageW

(00EF61F9)
(00EF77D3)
(00D3C3ED) TTerminal::ProcessFiles
(00D40EFA) TTerminal::MoveFiles
(0001A99E) TCustomScpExplorerForm::RemoteTransferFiles
(00012F67) TCustomScpExplorerForm::ExecuteFileOperation
(00013118) TCustomScpExplorerForm::ExecuteFileOperation
(000132D7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00051AED) TNonVisualDataModule::ExplorerActionsExecute
(00221750) System::Actions::TContainedActionList::ExecuteAction
(0038A959) Vcl::Actnlist::TCustomAction::Execute
(00204B78) System::Classes::_18364
(00038D01) USER32.dll
(00026E78) USER32.dll
(00026305) USER32.dll
(00025E6B) USER32.dll.DispatchMessageW

(00EF61F9)
(00EF77D3)
(0001AA70) TCustomScpExplorerForm::RemoteTransferFiles
(00012F67) TCustomScpExplorerForm::ExecuteFileOperation
(00013118) TCustomScpExplorerForm::ExecuteFileOperation
(000132D7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00051AED) TNonVisualDataModule::ExplorerActionsExecute
(00221750) System::Actions::TContainedActi

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 6.3.5

Error message:
Invalid access to memory.

Stack trace:
(00B807A8) UnixIncludeTrailingBackslash
(00E24572) C6612_0
(00E265DA) ____ExceptionHandler
(00E23394) __ExceptionHandler
(00098E2F) ntdll.dll
(00078201) ntdll.dll.KiUserExceptionDispatcher
(00B8A766) TRemoteFileList::GetFullDirectory
(00B8A1E4) TRemoteFile::GetFullFileName
(00B86615) TRemoteFile::Duplicate
(00B8A576) TRemoteFileList::CloneStrings
(00011FB9) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00012B5C) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(000269FB) TCustomScpExplorerForm::RemoteFileControlFileOperation
(00026E31) TCustomScpExplorerForm::RemoteFileControlDDEnd
(0048ECB6) Customdirview::TCustomDirView::DDDragDetect
(00AEA9AA) TUnixDirView::DDDragDetect
(0048AE46) Custom

The problem happens rarely. I cannot reproduce it.

@
Error message:
Invalid access to memory.

Stack trace:
(00B7F140) UnixIncludeTrailingBackslash
(00E22DAE) C6612_0
(00E24E16) ____ExceptionHandler
(00E21BD0) __ExceptionHandler
(00098CCF) ntdll.dll
(000781E1) ntdll.dll.KiUserExceptionDispatcher
(00B890FE) TRemoteFileList::GetFullDirectory
(00B88AE3) TRemoteFile::GetFullFileName
(00B84FAD) TRemoteFile::Duplicate
(00B88F0E) TRemoteFileList::CloneStrings
(00011FB9) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00012B5C) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FC26) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction
(003595AD) Vcl::Actnlist::TCustomAction::Execute
(00226F2C) System::Classes::_18201
(000326D1) USER32.dll
(000234E1) USER32.dll
(00021DA0) USER32.dll
(000218EB) USER32.dll.DispatchMessageW

(00E23419) C6612_0
(00E249F3) _ReThrowException
(00B8500A) TRemoteFile::Duplicate
(00B88F0E) TRemoteFileList::CloneStrings
(00011FB9) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00012B5C) TCustomScpExplorerForm::ExecuteFileOperation
(00012DD8) TCustomScpExplorerForm::ExecuteFileOperation
(00012F97) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0004FC26) TNonVisualDataModule::ExplorerActionsExecute
(002757CC) System::Actions::TContainedActionList::ExecuteAction
(003595AD) Vcl::Actnlist::TCustomAction::Execute
(00226F2C) System::Classes::_18201
(000326D1) USER32.dll
(000234E1) USER32.dll
(00021DA0) USER32.dll
(000218EB) 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 5.17.8

Error message:
Invalid access to memory.

Stack trace:
(00CC600C) UnixIncludeTrailingBackslash
(00F89E6E) C5296_0
(00F8BED6) ____ExceptionHandler
(00F88C90) __ExceptionHandler
(00088F2F) ntdll.dll
(000743C1) ntdll.dll.KiUserExceptionDispatcher
(00D184F6) TSessionData::IsInFolderOrWorkspace
(00D413BA) TStoredSessionList::IsFolderOrWorkspace
(00D4142A) TStoredSessionList::IsFolder
(0009C380) C16_0
(000A6857) UpdateJumpList
(000E04D2) TWinConfiguration::UpdateEntryInJumpList
(000E0663) TWinConfiguration::AddSessionToJumpList
(000E07E5) TWinConfiguration::UpdateJumpList
(000A662D) SetupInitialize
(00F87E81) __wstartup
(00067942) ntdll.dll.RtlGetAppContainerNamedObjectPath
(0006790F) ntdll.dll.RtlGetAppContainerNamedObjectPath

The problem happens rarely. I cannot reproduce it.