Best answer by Andy B
Thanks to everyone for posting here. We are working with SiriusXM as there have been functionality issues with SiriusXM on Sonos. Although I haven't received an "all clear" just yet, the issue seems to be resolved. I'll make sure to update this post when I have received word.
Update: Full functionality for SiriusXM has been restored. Please reach back out if you're still having problems and make sure to include a diagnostic at that time.