Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

<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 5.13.1

Error message:
Erro obtendo o nome do diretório remoto atual.

Acesso inválido à memória

Rastreamento de pilha:
(0068F064) ParseCertificate
(008BA3F6) C5101_0
(008BC45E) ____ExceptionHandler
(008B9218) __ExceptionHandler
(00045A86) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(007BB2DA) TTerminal::ReadCurrentDirectory
(007B6A63) TTerminal::ReactOnCommand
(006784E7) TUnixDirView::ChangeDirectory
(006769BE) TUnixDirView::ExecuteFile
(0041B7EA) Customdirview::TCustomDirView::DoExecute
(0041C3BB) Customdirview::TCustomDirView::WMLButtonDblClk
(00259A15) Vcl::Controls::TWinControl::WndProc
(0029D943) Vcl::Comctrls::TCustomListView::WndProc
(0037ED60) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(0001FD22) USER32.dll
(0001FD48) USER32.dll.CallWindowProcW
(0044115F) Dragdrop::TDragDrop::WndMethod
(0037ED60) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) USER32.dll.DispatchMessageW

(008BAA61) C5101_0
(008BC03B) _ReThrowException
(007B84AA) TTerminal::DoChangeDirectory
(007BB2DA) TTerminal::ReadCurrentDirectory
(007B6A63) TTerminal::ReactOnCommand
(006784E7) TUnixDirView::ChangeDirectory
(006769BE) TUnixDirView::ExecuteFile
(0041B7EA) Customdirview::TCustomDirView::DoExecute
(0041C3BB) Customdirview::TCustomDirView::WMLButtonDblClk
(00259A15) Vcl::Controls::TWinControl::WndProc
(0029D943) Vcl::Comctrls::TCustomLi

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.