It is the gapless issue that appeared starting with build 1169. Roon is aware of it and they are investigating. It is being discussed in multiple threads, such as these:
https://community.roonlabs.com/t/long-gaps-between-tracks-since-build-1169/225489
https://community.roonlabs.com/t/qobuz-gapless-playback-gone-investigating/225925