So..... I have had the following set up for a long time in a speaker group
1 Google Hub
1 Vizio Soundbar with Chromecast Built In
1 Paired Google Speakers
1 Original Google Home Speaker
1 Google TV in the living room
1 Google TV in the Kitchen
..............I have been able to cast seamlessly to all of them together for at least two years. Now suddenly it just wont cast - I just get the YouTube Music logo on the middle of the the two tv's I have my Google TVs attached to and my hub. BUT when I remove the Google TVs from the group it works! And oddly enough once i starts playing music I can add my Google TV's back to teh group and they join in and start playin the music. But if I stop te music and try to recast , it doesn't work so I have to take them out of the group again , cast to teh group without them, and add them back in WHILE the music is playing ... SOOO BIZARRE
Anyone have similar issues using Google TV in a speaker Group?
That certainly hasn't been easy for you — let's see what we can do.
Were there any recent changes or updates on your network? Is it also happening when playing music on your audio group via voice command? Have you tried creating a new speaker group? Could you try rebooting your devices and router to refresh the connection?