Cant add Folders to Storage

Have folders on NAS. Using macbook pro with roon installed. Using PS audio directstream junior to play the music.
Roon will no let me add folders.
Always says invalid path specified.
Other times when I type address and hit add it removes part of the typed path

Hi Thomas, is you NAS reachable by SMB?
Did you use a syntax like this:
and filled in your login credentials?