Zugriffsverletzung - ungültiger Zugriff auf den Speicher - TEditorForm::EditorActionsExecute

<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 5.7.6

Error message:
Zugriffsverletzung - ungültiger Zugriff auf den Speicher.

Stack trace:
(0021F148) Vcl::Controls::TWinControl::HandleNeeded
(0003EE3E) ntdll.dll.ZwWow64CallFunction64
(0003F5BA) ntdll.dll.KiUserExceptionDispatcher
(00749B30) TEditorForm::EditorActionsExecute
(00169E61) Vcl::Actnlist::TCustomAction::Execute
(003402A8) System::Classes::_18201
(00007E6F) USER32.DLL.CallNextHookEx
(000080CC) USER32.DLL
(00009625) USER32.DLL
(0000967B) USER32.DLL.DispatchMessageW

The problem happens rarely. I cannot reproduce it.