Invalid access to memory - TCustomScpExplorerForm::DoWarnLackOfTempSpace

"Keep remote directory up to date" running and crashes anytime a file is changed.

WinSCP 5.16.2

Error message:
Invalid access to memory.

Stack trace:
(00F83739)
(00F84D13)
(0001AD78) TCustomScpExplorerForm::DoWarnLackOfTempSpace
(000A9BC3) TWinConfiguration::Default
(0042552A) Dirview::TDirView::
(00424ACA) Customunixdirview::TCustomUnixDirView::
(000436C9) USER32.dll
(000250B7) USER32.dll
(00024C55) USER32.dll
(0002D62D) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(0002B45B) USER32.dll.PeekMessageW
(0023CE58) Vcl::Dialogs::_16512
(00E2FDD1)
(00E2F435)
(0001A9FD) TCustomScpExplorerForm::SaveWorkspace
(0004FBAB) TConsoleRunner::ScriptTerminalQueryUser
(00047BA6) TScpCommanderForm::PathLabelDblClick
(003E7B38) __tpdsc__ System::Uitypes::TOpenOption
(001C6721) Vcl::Stdctrls::TCustomListBox::WMLButtonDown
(003A4114) System::Win::Registry::TRegIniFile::ReadString
(000436C9) USER32.dll
(000250B7) USER32.dll
(00024209) USER32.dll
(00023FCB) USER32.dll.DispatchMessageW

(0001E655) __tpdsc__ TMutexGuard
(00F830CE)
(00F85136)
(00F81EF0)
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(00DA13C7)
(00D9B4BE)
(0001B27C) TCustomScpExplorerForm::DoOpenDirectoryDialog
(0001AD05) TCustomScpExplorerForm::ToolbarGetBaseSize
(000A9BC3) TWinConfiguration::Default
(0042552A) Dirview::TDirView::
(00424ACA) Customunixdirview::TCustomUnixDirView::
(000436C9) USER32.dll
(000250B7) USER32.dll
(00024C55) USER32.dll
(0002D62D) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(0002B45B) USER32.dll.PeekMessageW
(0023CE58) Vcl::Dialogs::_16512
(00E2FDD1)
(00E2F435)
(0001A9FD) TCustomScpExplorerForm::SaveWorkspace
(0004FBAB) TConsoleRunner::ScriptTerminalQueryUser
(00047BA6) TScpCommanderForm::PathLabelDblClick
(003E7B38) __tpdsc__ System::Uitypes::TOpenOption
(001C6721) Vcl::Stdctrls::TCustomListBox::WMLButtonDown
(003A4114) System::Win::Registry::TRegIniFile::ReadString
(000436C9) USER32.dll
(000250B7) USER32.dll
(00024209) USER32.dll
(00023FCB) USER32.dll.DispatchMessageW

(00F83739)
(00F84D13)
(00D9B509)
(0001B27C) TCustomScpExplorerForm::DoOpenDirectoryDialog
(0001AD05) TCustomScpExplorerForm::ToolbarGetBaseSize
(000A9BC3) TWinConfiguration::Default
(0042552A) Dirview::TDirView::
(00424ACA) Customunixdirview::TCustomUnixDirView::
(000436C9) USER32.dll
(000250B7) USER32.dll
(00024C55) USER32.dll
(0002D62D) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(0002B45B) USER32.dll.PeekMessageW
(0023CE58) Vcl::Dialogs::_16512
(00E2FDD1)
(00E2F435)
(0001A9FD) TCustomScpExplorerForm::SaveWorkspace
(0004FBAB) TConsoleRunner::ScriptTerminalQueryUser
(00047BA6) TScpCommanderForm::PathLabelDblClick
(003E7B38) __tpdsc__ System::Uitypes::TOpenOption
(001C6721) Vcl::Stdctrls::TCustomListBox::WMLButtonDown
(003A4114) System::Win::Registry::TRegIniFile::ReadString
(000436C9) USER32.dll
(000250B7) USER32.dll
(00024209) USER32.dll
(00023FCB) 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.