Best answer by Ryan S
This would work for everything but with the Beam and Sonos Ones.
When bonded with a Beam, Sonos Ones will have Alexa disabled on them. We found during testing that the best experience was when the Sonos Ones microphones were turned off. CEC based Alexa commands don't work through the Sonos One, so if those were hearing your commands instead of the Beam, it wouldn't pass them to the TV. I'll pass the word along to the team that you'd like to be able to turn the microphones back on, and more importantly, that the Beam is having trouble hearing you. That shouldn't be the case.
You might want to give us a call on our support line and see if they can help get the setup cleaned up a bit and improve the Beam's listening.