@dylan Same problem here, playback drops out when streaming from local NAS, Qobuz, Tidal and internet Radio.
All was OK and worked consistently prior to latest Roon update.
Config - ROCK on an 8th gen Core i3 NUC, WD MyCloud NAS, Mac Big Sur OS client (streaming via Airplay), Naim Uniti Supernova - all on wired network, no wifi, all at latest s/w build Rock and Mac 1.8 build 795
Mac client plays ok then audio stops, playback bar continues to move thru to the end of the track but no sound, then starts audio again on next track