メモリのアクセス違反

<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 5.15.4

Error message:
メモリのアクセス違反

スタック トレース:
(0074C404)
(0008402F) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(00019074)
(0001911E)
(002791C5)
(0027880C)
(003A3E28)
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0047ADFF)
(003A3E28)
(00045359) USER32.dll
(00036297) USER32.dll
(000353D6) USER32.dll
(000351AB) USER32.dll.DispatchMessageW

Status: unknown_rel_addr

The problem happens rarely. I cannot reproduce it.