I have just added a second Era:100 to my setup, and have configured the new speaker as a stereo pair in the kitchen with an existing Era:100 in the same room.
When I play music from another room (vinyl or cd via a Sonos Port attached to a vintage amplifier) the stereo pair work fine, but when I play BBC Sounds in the kitchen, only one speaker (the original, not the newcomer) plays the stream.
I have tried going into the EQ settings in the Sonos app and shifting the balance to the right; this confirms there is no stream to that speaker.
The same thing happens when I try Sonos Radio.
Both BBC Sounds and Sonos Radio were installed as services before I added the second Era to the setup.
Libby was also part of the original set up, and this plays to both speakers.
I have rebooted each Era, and have also reauthorised, and removed and then re-added the faulty services, but all to no avail (I also removed and re-created the stereo pair several times during the process of trying to get BBC Sounds to play through both speakers).
I then added a new service, Amazon Music, which I had not previously used -- and that plays fine through both Eras.
I'd be grateful for any advice on what steps I might take to get BBC Sounds to play through both speakers.
Thanks.