<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 5.7

Error message:
External exception EEFFACE

Stack trace:
[7580B727] KERNELBASE.dll.RaiseException
[77506A96] ntdll.dll
[774D010A] ntdll.dll.KiUserExceptionDispatcher
[010967E0] Jclhookexcept::_16408
[013E0E32] C4725_0
[013E217C] _ThrowExceptionLDTC
[013C61AC] C2769_0
[012D5D69] TSFTPFileSystem::ReceivePacket
[012D70DC] TSFTPFileSystem::ReceiveResponse
[012D72D9] TSFTPFileSystem::SendPacketAndReceiveResponse
[012D7741] TSFTPFileSystem::RealPath
[012D7E6E] TSFTPFileSystem::RealPath
[012E6175] TSFTPFileSystem::ChangeDirectory
[01317C7E] TTerminal::ChangeDirectory
[01213D53] TUnixDirView::ChangeDirectory
[01212216] TUnixDirView::ExecuteParentDirectory