<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 5.7.6

Error message:
获取当前远程目录名出错。

无效的内存访问。

Stack trace:
(002CF02E) System::Generics::Collections::TList__1<System::Generics::Collections::TPair__2<System::Typinfo::TTypeInfo *, System::UnicodeString> >::IndexOfItem
(007E46BA) C4799_3
(007E6722) ____ExceptionHandler
(007E369C) __ExceptionHandler
(00062496) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(00713702) TTerminal::ReadCurrentDirectory
(0070F6B6) TTerminal::ReactOnCommand
(006154B7) TUnixDirView::ChangeDirectory
(00613902) TUnixDirView::ExecuteFile
(0021C315) Vcl::Controls::TWinControl::WndProc
(00260243) Vcl::Comctrls::TCustomListView::WndProc
(003402A8) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(0001FD32) USER32.dll
(0001FD58) USER32.dll.CallWindowProcW
(003FEE7F) Dragdrop::TDragDrop::WndMethod
(003402A8) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167CE) USER32.dll
(00016895) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.