Mine is doing the same. I've come in search of answers and found you
questioning the same. I'm glad to see it doesn't appear to be something
I have done. I have tried a factory reset on the Hub and it didn't fix
anything.
I am having the same issue. Music was playing fine and ad free yesterday
and now today it is playing ads. I have checked that I'm connected to
YouTube Music Premium. I have also factory reset my hub and it is still
occurring.
