I glad it works for you but that didn't seem to do the trick for me.
Drat. Perhaps because i always tell my display which speaker group to
play on every time i initiate music in the first place.Interestingly,
this started happening a week or two ago,...
This just started happening to me too. When I ask my Google Nest Hub Max
to raise or lower volume on my Google Max speakers it replies " Sorry, I
can't change the volume on this device". Just noticed it about 9:00 PM
pacific 12/18/21.