I'm using home minis and a home max as the speakers. The device that is
triggering the "One or more devices are not available. Please try
setting them up again" response is a smart light bulb from Sylvania. I
have about 20 of these, but I deleted one...
I also have this exact issue and cannot find an answer. It seems like
quite a few people are in this situation. Incredibly frustrating. How
can we get a higher level response from Google here?