It’s very strange over here. i was originally affected by the sonos problems (see here ).
For some time, everything was stable, Sonos streaming worked as expected. Since two days or so, I am hit by “Roon lost control of the audio device”. But, strangely enough, only on my IKEA picture frame, which is currently only reachable via airplay. My Sonos one on the other hand works trouble-free via roon and sonos straming.