Hey @tau_ceti,
Thanks for taking the time to write in! Sorry to hear you’re having playback issues with your Nucleus.
To confirm, do you ever have both servers on and running at the same time under a single local network? This will likely cause issues if so, so I’d ensure that you only have a single server up and running within a single network and a single Roon license.
From your Nucleus, we’ve enabled diagnostics for the machine, and see repeated failures in track analysis tied to your local library. Can you review your Roon Settings>Library and both your ‘Skipped Tracks’ as well as your ‘Clean up Library’ settings? Don’t perform a full clean-up library, but clicking this will help identify if your local library isn’t functioning properly within your Nucleus.
Another good test here would be to temporarily disable your local libraries and only rely on Tidal/Qobuz. Then, test to see if you run into the same skipping and freezing.
While you’re testing out the above, let me know a more specific date, time, and name of the track playing the next time you experience this issue, and share that info here. We’ll be monitoring this thread for your reply! 