What does a red "unavailable" mean on tracks of an album with searching? How do I diagnose what's wrong. I'm happily playing the same album with all tracks direct from Quobuz.
Does it happen to just some albums, not all? Then it usually means that you added the album to your library in the past, but this particular version of the album has been withdrawn from Qobuz, usually due to licensing changes. In most cases when this happens, a new version has been made available on Qobuz, and this is most likely what you are happily playing direct from Qobuz.
In this case, you should be able to find the new replacement version if you go to the “unavailable” album in your library and look in the VERSIONS tab. Sometimes you may have to search for it. Add the new version to your library and delete the old one. (Unfortunately, metadata edits will not be transferred)