I have a Beam, Sub and Pair of Ones along with a pair of Fives that all connect to Sonos Net via the Sonos Boost plugged directly into my router.
I also have a pair of ERA 300s that are not compatible with Sonos Net.
Up until yesterday I've had no problem playing music to any two pairs or all speakers at once.
Ever since the most recent app update (today or yesterday), I can combine the groups of speakers or "rooms" that are on the Sonos net and play them together, but the ERA 300s cannot play the same song at the same time all of the sudden.
I can also play just the ERA 300s, but if I attempt to add in either of the other rooms, the app shows them playing but no audio comes out.
Anybody else experiencing this?