Suddenly, I can only play out tracks from my own lib. ‘No Tidal tracks available’. Nothing changed in config as far as I know. Also getting the message ‘too many failures. Stopping playback’ In Tidal everything works, so what’s wrong??
Have you re booted your Roon Core… always a good start
So we can better assist you, please provide a brief description of your current setup using this link as a guide.
Make sure to describe your network configuration/topology, including any networking hardware currently in use, so we can have a clear understanding of how your devices are communicating.
As Chris suggested above, definitely try giving your Core a reboot and let us know if there is any change after.