Nest Mini not able to join multiple groups

[JayTee654321]

I have a couple Nest Minis in different rooms. I have a total of three speaker groups and each device belongs to anywhere between one and three speaker groups. This setup worked fine for at least a year or two.

Now all of a sudden I'm unable to assign Nest Mini speakers to more than one speaker group. This used to work but now it doesn't. What gives?

[David_K]

Unfortunately, there are limitations on this now, which means certain devices cannot be in more than one speaker group. It doesn't affect existing speaker groups, just new ones or changes.

Create and manage speaker groups - Google Nest Help

See the "Speaker group device limitations" section.