External exception C0000006

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WinSCP 5.9

Error message:
External exception C0000006

Трассировка стека:
(003E1929)
(00045CC6) ntdll.dll.RtlRaiseStatus
(00045B52) ntdll.dll.KiUserExceptionDispatcher
(00361FEF)

Status: unknown_rel_addr

The problem happens rarely. I cannot reproduce it.