Re: Commands/Static Custom commands : Keep local directory up to date... Issue
It seems that you have a different version of WinSCP and WinSCP .NET assembly. Make sure you update both to the latest release.
See also https://winscp.net/eng/docs/message_key_fingerprint_does_not_match
See also https://winscp.net/eng/docs/message_key_fingerprint_does_not_match