Re: Issue with SFTP sites that do not allow LIST permission (e.g. Write only)
You cannot prevent WinSCP from displaying the initial error.
You can prevent WinSCP from trying to reload the directory after the upload by disabling "Automatically refresh remote directory after operation":
https://winscp.net/eng/docs/ui_pref_panels_remote
You can prevent WinSCP from trying to reload the directory after the upload by disabling "Automatically refresh remote directory after operation":
https://winscp.net/eng/docs/ui_pref_panels_remote