AWS8 won’t stream music over cellular

I have a S8 with AT&T cellular plan. I’ve had the watch and cell plan active for over a year, but have noticed recently that it won’t stream any music over cellular (AMusic, Pandora, iHeart, Spotify). All other cellular functions appear to be working fine. Siri answers questions about sport scores and I can text/call just fine using Siri. But, it just won’t play music over cellular, when out of range from my iPhone.

I’ve checked the cellular settings, all are “on”. I’ve restarted the watch and also unpaired it / repaired it. No luck. I’m not sure what other solutions I can try. Any help is appreciated. Thanks