You are right. I have finally tracked it down to a pair that was in a
group. Completely re setup the pair and added back to the group and all
works fine now. Clearly a bug as it was all working fine before.
I can confirm that the following happens and seems to confirm that the
problem is with speaker groups.Removed the speaker groupAsked Google to
play my Supermix - works brilliantly without ads and play the music I
wantCreated the group (Office group) ...
