<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 5.15.3

Error message:
Invalid access to memory.

Stack trace:
(001ACEC6) mshtml.dll
(0006248E) ntdll.dll
(0000F15E) ntdll.dll.KiUserExceptionDispatcher
(001ACCF4) mshtml.dll
(001ADBAB) mshtml.dll
(001ADF79) mshtml.dll
(001ADECF) mshtml.dll
(00015307) USER32.dll
(00015D45) USER32.dll
(000167D2) USER32.dll
(00016895) USER32.dll.DispatchMessageW

Status: other

The problem happens rarely. I cannot reproduce it.