<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 5.13.1

Error message:
Privileged instruction

Pinon jäljitys:
(00259DA4) Vcl::Controls::TWinControl::PaintControls
(0006248E) ntdll.dll
(0000F15E) ntdll.dll.KiUserExceptionDispatcher
(00259CBD) Vcl::Controls::TWinControl::PaintHandler
(0025A3CC) Vcl::Controls::TWinControl::WMPaint
(0025F7A5) Vcl::Controls::TCustomControl::WMPaint
(00259A15) Vcl::Controls::TWinControl::WndProc
(0025905C) Vcl::Controls::TWinControl::MainWndProc
(0037ED60) System::Classes::_18201
(000152F7) USER32.dll
(00016311) USER32.dll.GetDC
(00015DE3) USER32.dll
(00015E41) USER32.dll
(0000F137) ntdll.dll.KiUserCallbackDispatcher
(00016885) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.