Invalid access to memory

WinSCP was connected to a Linux box when the error message was displayed. I wasn't doing anything when the error occurred.

WinSCP 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(00419098) System::HandleAnyException
(00088F2F) ntdll.dll
(000743C1) ntdll.dll.KiUserExceptionDispatcher
(003A5978) System::Classes::_18201
(000437A9) USER32.dll
(000242A7) USER32.dll
(000233F9) USER32.dll
(000231DB) USER32.dll.DispatchMessageW

Status: all_insignificant

The problem happens rarely. I cannot reproduce it.