Using latest Roon build on a Mac with X.10.5. Mostly using Tidal right now, seeing lots of error messages, typically when I’m already playing something and I decide to play something else instead. That works about half the time. Just now I was playing something and decide to the new jazz album "Hommage to Eberhard Weber. I clicked on “play now” and all the tracks are marked “unavailable.” I’ve had similar errors under different circumstances but didn’t take careful notes. Will report in more detail if they occur again.