Hey @Robert_Allen – thanks for following up, that makes sense now.
Roon handles tracks in your library different from tracks you play from TIDAL, in a number of different ways. When you add a playlist from TIDAL, the tracks referenced in that list are on TIDAL, and that doesn’t change when you make a copy of the playlist (or select all the songs and add them to a new playlist, for example). This is a side effect of our architecture (as opposed to a bug) so I can’t really give a timeline on doing better for this case.
For now, you can select all the tracks in the playlist and then choose Add To Library. Once they’ve been added, you’ll be able to favorite them in the tracks browser.
Admittedly not as graceful as we usually like, but this comes down to Roon’s underlying handling of “tracks in your library”, so for now we’ll keep this flow in mind if we make a change down the line.