Thanks for your report.
I have sent you an email with a debug version of WinSCP to address you have used to register on this forum.
<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
Error message:
Invalid access to memory.
Stack trace:
[00C9ECE3]
[76F9027E] ntdll.dll.ZwWow64CallFunction64
[76F909FA] ntdll.dll.KiUserExceptionDispatcher
[00C9CF3B]
[00BF0678]
[76D28E6F] USER32.DLL.CallNextHookEx
[76D290CC] USER32.DLL
[76D2A66A] USER32.DLL
[76D2A6DB] USER32.DLL.DispatchMessageW