Radio Station on 2 Echo DOTs

[ukr2@yahoo.com]

I can play the Radio Station separately on 2 DOTs, but they are out of synch.
So I created a Group with the 2 DOTs and Named the Group "Kitchen and Bathroom" and it works.
Then I renamed the Group to "Both", but now it won't work.
Renamed it back to "Kitchen and Bathroom" and it works.
WHY???  Is "Both" a do-not-use name?

[ukr2@yahoo.com]

OK,  I changed the name from"Both" to "Both Devices" and now it Works.
Maybe Group names have to be more than 4 characters.

SOLVED.