<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 5.13.2

Error message:
无效的内存访问。

Stack trace:
(0006248E) ntdll.dll
(0000F15E) ntdll.dll.KiUserExceptionDispatcher
(0009E0B7) CreateDesktopSessionShortCut
(0009E17B) void ValidateMaskEditT<Vcl::Stdctrls::TComboBox>
(00034877) TNonVisualDataModule::ExplorerActionsUpdate
(003C2428) System::Actions::TContainedAction::SetChecked
(001A81BE) __tpdsc__ Vcl::Actnlist::TCustomActionList
(00468BA5) Tb2item::TTBView::ScrollSelectedIntoView
(004611DA) Tb2item::TTBCustomItem::IsShortCutStored
(004616B1) Tb2item::TTBCustomItem::ClickWndProc
(0046179D) Tb2item::TTBCustomItem::Click
(004695B1) Tb2item::TTBModalHandler::Loop
(0046956E) Tb2item::TTBModalHandler::Loop
(0025AEE1) Vcl::Controls::TWinControl::CustomAlignInsertBefore
(0029EE0F) Vcl::Comctrls::TCustomListView::CNNotify
(0038022C) System::Classes::TBasicActionLink::TBasicActionLink
(00015235) USER32.dll
(000158E5) USER32.dll
(0001FAAB) USER32.dll
(0001FAD1) USER32.dll.CallWindowProcW
(004430CF) Dragdrop::TDropTarget::OnScrollTimer
(0038022C) System::Classes::TBasicActionLink::TBasicActionLink
(00015235) USER32.dll
(000158E5) USER32.dll
(00016172) USER32.dll
(000162EE) USER32.dll
(0000F137) ntdll.dll.KiUserCallbackDispatcher
(0001BD7C) USER32.dll.SendMessageW
(000A1A7C) COMCTL32.DLL
(000A207A) COMCTL32.DLL
(000A10E2) COMCTL32.DLL
(0002EE7B) COMCTL32.DLL
(00015235) USE

The problem happens rarely. I cannot reproduce it.