Hi. There is a problem in how Roon deals with Apple Music’s Smart Playlists.
First: Such playlists cannot be deleted. [ > ellipsis … > Delete Playlist] does not exist. Only manually filled playlists can be deleted.
Second: In [Playlist view > Track list > elipsis … > File info > Comments] the “Comments” from Apple Music are only visible for manual Playlists and not for Smart Playlists.
These are a bug in how Roon handles Apple Smart Playlists.