Invalid access to memory

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WinSCP 5.7.6

Error message:
Invalid access to memory.

Stack trace:
(0021F12F) Vcl::Controls::TWinControl::HandleNeeded
(00062496) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(003402A8) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167CE) USER32.dll
(00016895) USER32.dll.DispatchMessageW

Status: all_insignificant

The problem happens rarely. I cannot reproduce it.