Error transferring file 'C:\Users\Gabe\Documents\My Games\FarmingSimulator2019\mods\ART_2020_Chevy_2500HDv1.zip' - TFileZillaIntf::HandleMessage

<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 5.19.4

Error message:
Error transferring file 'C:\Users\Gabe\Documents\My Games\FarmingSimulator2019\mods\ART_2020_Chevy_2500HDv1.zip'.

Invalid access to memory.

Stack trace:
(0059084E) TFileZillaIntf::HandleMessage
(00FC3FFE) C5294_3
(00FC6066) ____ExceptionHandler
(00FC2E20) __ExceptionHandler
(0008786F) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(00CCB084) TFTPFileSystem::ProcessMessage
(00CCB367) TFTPFileSystem::DoWaitForReply
(00CCB453) TFTPFileSystem::WaitForReply
(00CCB4AC) TFTPFileSystem::WaitForCommandReply
(00CC4075) TFTPFileSystem::Source
(00DE25FF) TTerminal::Source
(00DE0F6C) TTerminal::SourceRobust
(00DE0D99) TTerminal::DoCopyToRemote
(00CC3EAB) TFTPFileSystem::CopyToRemote
(00DE07EF) TTerminal::CopyToRemote
(00010086) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00010C8C) TCustomScpExplorerForm::ExecuteFileOperation
(00024D75) TCustomScpExplorerForm::RemoteFileControlDragDropFileOperation
(00024F0D) TCustomScpExplorerForm::RemoteFileControlDDFileOperation
(00C6DC92) TUnixDirView::PerformItemDragDropOperation
(00469D20) Customdirview::TCustomDirView::DDProcessDropped
(0049E7AB) Dragdrop::TDragDrop::WndMethod
(003C7A98) System::Classes::_18201
(000401F9) USER32.dll
(000371C5) USER32.dll
(00034F25) USER32.dll
(00034CEB) USER32.dll.DispatchMessageW

(00FC4669) C5294_3
(00FC5C43) _ReThrowException
(005908C4) TFileZillaIntf::HandleMessage
(00CCB084) TFTPFileSystem::ProcessMessage
(00CCB367) TFTPFileSystem::DoWaitForReply
(00CCB453) TFTPFileSystem::WaitForReply
(00CCB4AC) TFTPFileSystem::WaitForCommandReply
(00CC4075) TFTPFileSystem::Source
(00DE25FF) TTerminal::Source
(00DE0F6C) TTerminal::SourceRobust
(00DE0D99) TTerminal::DoCopyToRemote
(00CC3EAB) TFTPFileSystem::CopyToRemote
(00DE07EF) TTerminal::CopyToRemote
(00010086) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00010C8C) TCustomScpExplorerForm::ExecuteFileOperation
(00024D75) TCustomScpExplorerForm::RemoteFileControlDragDropFileOperation
(00024F0D) TCustomScpExplorerForm::RemoteFileControlDDFileOperation
(00C6DC92) TUnixDirView::PerformItemDragDropOperation
(00469D20) Customdirview::TCustomDirView::DDProcessDropped
(0049E7AB) Dragdrop::TDragDrop::WndMethod
(003C7A98) System::Classes::_18201
(000401F9) USER32.dll
(000371C5) USER32.dll
(00034F25) USER32.dll
(00034CEB) USER32.dll.DispatchMessageW

(00FC4669) C5294_3
(00FC5C43) _ReThrowException
(00CCB3D4) TFTPFileSystem::DoWaitForReply
(00CCB453) TFTPFileSystem::WaitForReply
(00CCB4AC) TFTPFileSystem::WaitForCommandReply
(00CC4075) TFTPFileSystem::Source
(00DE25FF) TTerminal::Source
(00DE0F6C) TTerminal::SourceRobust
(00DE0D99) TTerminal::DoCopyToRemote
(00CC3EAB) TFTPFileSystem::CopyToRemote
(00DE07EF) TTerminal::CopyToRemote
(00010086) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00010C8C) TCustomScpExplorerForm::ExecuteFileOperation
(00024D75) TCustomScpExplorerForm::RemoteFileControlDragDropFileOperation
(00024F0D) TCustomScpExplorerForm::RemoteFileControlDDFileOperation
(00C6

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.

@taek: 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 5.21.7

Error message:
Error transferring file 'C:\Users\glenn\Desktop\1890-04-01-11h05m44.jpg'.

Invalid access to memory.

Stack trace:
(00594BC2) TFileZillaIntf::HandleMessage
(00FDF7C2) C5412_0
(00FE182A) ____ExceptionHandler
(00FDE5E4) __ExceptionHandler
(00087AFF) ntdll.dll
(00073FD1) ntdll.dll.KiUserExceptionDispatcher
(00CD9368) TFTPFileSystem::ProcessMessage
(00CD964B) TFTPFileSystem::DoWaitForReply
(00CD9737) TFTPFileSystem::WaitForReply
(00CD9790) TFTPFileSystem::WaitForCommandReply
(00CD225D) TFTPFileSystem::Source
(00DF70DF) TTerminal::Source
(00DF5A48) TTerminal::SourceRobust
(00DF5875) TTerminal::DoCopyToRemote
(00CD2067) TFTPFileSystem::CopyToRemote
(00DF4598) TTerminal::CopyToParallel
(00DF4709) TTerminal::CopyParallel
(00DF5282) TTerminal::CopyToRemote
(00D053C5) TUploadQueueItem::DoTransferExecute
(00D03F4A) TQueueItem::Execute
(00D02F7A) TTerminalItem::ProcessEvent
(00D012C0) TSignalThread::Execute
(000C282F) Userinterface::C20_0
(0001F097) KERNEL32.DLL.BaseThreadInitThunk
(00066B6C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B39) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00FDFE2D) C5412_0
(00FE1407) _ReThrowException
(00594C38) TFileZillaIntf::HandleMessage
(00CD9368) TFTPFileSystem::ProcessMessage
(00CD964B) TFTPFileSystem::DoWaitForReply
(00CD9737) TFTPFileSystem::WaitForReply
(00CD9790) TFTPFileSystem::WaitForCommandReply
(00CD225D) TFTPFileSystem::Source
(00DF70DF) TTerminal::Source
(00DF5A48) TTerminal::SourceRobust
(00DF5875) TTerminal::DoCopyToRemote
(00CD2067) TFTPFileSystem::CopyToRemote
(00DF4598) TTerminal::CopyToParallel
(00DF4709) TTerminal::CopyParallel
(00DF5282) TTerminal::CopyToRemote
(00D053C5) TUploadQueueItem::DoTransferExecute
(00D03F4A) TQueueItem::Execute
(00D02F7A) TTerminalItem::ProcessEvent
(00D012C0) TSignalThread::Execute
(000C282F) Userinterface::C20_0
(0001F097) KERNEL32.DLL.BaseThreadInitThunk
(00066B6C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B39) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00FDFE2D) C5412_0
(00FE1407) _ReThrowException
(00CD96B8) TFTPFileSystem::DoWaitForReply
(00CD9737) TFTPFileSystem::WaitForReply
(00CD9790) TFTPFileSystem::WaitForCommandReply
(00CD225D) TFTPFileSystem::Source
(00DF70DF) TTerminal::Source
(00DF5A48) TTerminal::SourceRobust
(00DF5875) TTerminal::DoCopyToRemote
(00CD2067) TFTPFileSystem::CopyToRemote
(00DF4598) TTerminal::CopyToParallel
(00DF4709) TTerminal::CopyParallel
(00DF5282) TTerminal::CopyToRemote
(00D053C5) TUploadQueueItem::DoTransferExecute
(00D03F4A) TQueueItem::Execute
(00D02F7A) TTerminalItem::ProcessEvent
(00D012C0) TSignalThread::Execute
(000C282F) Userinterface::C20_0
(0001F097) KERNEL32.DLL.BaseThreadInitThunk
(00066B6C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B39) ntdll.dll.RtlGetAppContainerNamedObjectPath

The problem happens rarely. I cannot reproduce it.