This issue is limited to the live Apple Music radio stations - Apple Music 1, Club, Chill, etc.
I haven't been able to get them to play for a few weeks now. They used to work fine.
The track ID comes through as “unknown content” and nothing plays. Sometimes I get an error saying that it is not encoded properly, but not always.
Today when I tested, Apple Music 1 played through one of my Play 5s, but not through any other speaker, while the app filled with error message pop ups. The other stations refused to play at all.
Is this a known issue?