Invalid access to memory - Vcl::Forms::TApplication::ProcessMessage

Keeping a remote directory up to date was left running overnight. The local directory was a mapped drive to a share on a ubuntu system. The remote drive was also on a ubuntu system via sftp.

WinSCP 5.15.4

Error message:
Invalid access to memory.

Stack trace:
(0007DAFF) ntdll.dll
(0006B711) ntdll.dll.KiUserExceptionDispatcher
(0003AE69) USER32.dll
(00037335) USER32.dll
(00036ED5) USER32.dll
(00039627) USER32.dll
(0006B6CB) ntdll.dll.KiUserCallbackDispatcher
(00037FEF) USER32.dll.PeekMessageW
(0023CB6C) Vcl::Forms::TApplication::ProcessMessage
(008B9785) TSynchronizeDialog::Execute
(008B8E19) DoSynchronizeDialog
(0001A3ED) TCustomScpExplorerForm::DoSynchronizeDirectories
(0004DFA3) TScpCommanderForm::SynchronizeDirectories
(00046505) TNonVisualDataModule::ExplorerActionsExecute
(003E784C) System::Actions::TContainedActionList::ExecuteAction
(001C6435) Vcl::Actnlist::TCustomAction::Execute
(003A3E28) System::Classes::_18201
(0003AE69) USER32.dll
(00037335) USER32.dll
(00036BE9) USER32.dll
(000369CB) USER32.dll.DispatchMessageW

(0027C3D0) Vcl::Controls::TWinControl::HandleAllocated

(00394BAB) System::Classes::_17687
(00394DE5) System::Classes::TReader::ReadProperty
(003945D9) System::Classes::TReader::ReadDataInner
(0039458C) System::Classes::TReader::ReadData
(003A2235) System::Classes::TComponent::ReadState
(00395567) System::Classes::TReader::ReadRootComponent
(0038F432) System::Classes::TStream::ReadComponent
(002B99CF) Vcl::Comctrls::TCustomListView::CreateWnd
(0042D05E) Nortonlikelistview::TCustomNortonLikeListView::CreateWnd
(00429209) Ielistview::TCustomIEListView::CreateWnd
(002786C4) Vcl::Controls::TWinControl::UpdateControlState
(0027845B) Vcl::Controls::TWinControl::CMRecreateWnd
(004434BC) Customdirview::TCustomDirView::CMRecreateWnd
(002791C5) Vcl::Controls::TWinControl::WndProc
(002BC49F) Vcl::Comctrls::TCustomListView::WndProc

(0041641C) System::TObject::Free
(0007DAFF) ntdll.dll
(0006B711) ntdll.dll.KiUserExceptionDispatcher
(0038F432) System::Classes::TStream::ReadComponent
(002B99CF) Vcl::Comctrls::TCustomListView::CreateWnd
(0042D05E) Nortonlikelistview::TCustomNortonLikeListView::CreateWnd
(00429209) Ielistview::TCustomIEListView::CreateWnd
(002786C4) Vcl::Controls::TWinControl::UpdateControlState
(0027845B) Vcl::Controls::TWinControl::CMRecreateWnd
(004434BC) Customdirview::TCustomDirView::CMRecreateWnd
(002791C5) Vcl::Controls::TWinControl::WndProc
(002BC49F) Vcl::Comctrls::TCustomListView::WndProc

(0041641C) System::TObject::Free
(0007DAFF) ntdll.dll
(0006B711) ntdll.dll.KiUserExceptionDispatcher
(0038F432) System::Classes::TStream::ReadComponent
(002B99CF) Vcl::Comctrls::TCustomListView::CreateWnd
(0042D05E) Nortonlikelistview::TCustomNortonLikeListView::CreateWnd
(00429209) Ielistview::TCustomIEListView::CreateWnd
(002786C4) Vcl::Controls::TWinControl::UpdateControlState
(0027845B) Vcl::Controls::TWinControl::CMRecreateWnd
(004434BC) Customdirview::TCustomDirView::CMRecreateWnd
(002791C5) Vcl::Controls::TWinControl::WndProc
(002BC49F) Vcl::Comctrls::TCustomListView::WndProc

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 5.15.4

Error message:
Invalid access to memory.

Stack trace:
(FFFFF800)WinSCP.exe
(00046186) ntdll.dll.RtlRaiseStatus
(00046012) ntdll.dll.KiUserExceptionDispatcher
(001AFBB4) mshtml.dll
(001B0A67) mshtml.dll
(001B0E3E) mshtml.dll
(001B0D94) mshtml.dll
(0001B4E4) USER32.dll
(00014F9A) USER32.dll
(00013F09) USER32.dll
(00007C26) USER32.dll
(00045FEB) ntdll.dll.KiUserCallbackDispatcher
(0001549C) USER32.dll
(0023CB6C) Vcl::Forms::TApplication::ProcessMessage
(00101B77) Execute
(00002664) wWinMain
(009262A9) C5025_0
(000627F3) ntdll.dll
(000627C3) ntdll.dll

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 5.17.1

Error message:
Invalid access to memory.

Stack trace:
(0002F026)
(00F84E6A) C5296_3
(00F86ED2) ____ExceptionHandler
(00F83C8C) __ExceptionHandler
(00046186) ntdll.dll.RtlRaiseStatus
(00046012) ntdll.dll.KiUserExceptionDispatcher
(001AFBB4) mshtml.dll
(001B0A67) mshtml.dll
(001B0E3E) mshtml.dll
(001B0D94) mshtml.dll
(0001B4E4) USER32.dll
(0001B5E2) USER32.dll
(00013F09) USER32.dll
(00007C26) USER32.dll
(00045FEB) ntdll.dll.KiUserCallbackDispatcher
(0001549C) USER32.dll
(0023D2BC) Vcl::Forms::TApplication::ProcessMessage

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 5.17.2

Error message:
External exception C0000258

Stack trace:
(0007328F) ntdll.dll.KiUserCallbackDispatcher
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(00028EFB) USER32.dll.PeekMessageW
(0023D2BC) Vcl::Forms::TApplication::ProcessMessage
(001022BA) Execute
(00002658) wWinMain
(00F832A5) __wstartup
(00066C12) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066BDF) ntdll.dll.RtlGetAppContainerNamedObjectPath

The problem happens rarely. I cannot reproduce it.