Re: Winscp 404 error on saved session
                Your stored site has 
https://winscp.net/eng/docs/task_navigate#manual
        /shared_with_me/RVD To BMG set an initial remote path. That path  does not seem to exist (maybe it existed in the past). So just navigate to any other valid path. Or to a root (/). You can use Open Directory command.
https://winscp.net/eng/docs/task_navigate#manual