Ошибка доступа к памяти

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
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WinSCP 5.19.5

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(001AFD87) mshtml.dll
(00045A86) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(001AFBB4) mshtml.dll
(001B0A67) mshtml.dll
(001B0E3E) mshtml.dll
(001B0D94) mshtml.dll
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) USER32.dll.DispatchMessageW

Status: other

The problem happens rarely. I cannot reproduce it.