Can't Control TV Volume Level

I have two Sonos Ones and a Sonos Beam setup as the sound system for my tv. It has been working perfectly until this morning. All the sudden I cannot increase or decrease the volume from either the app or the speakers themselves. If I play music from them it's fine, but in trying to watch tv through them it won't allow me to control the volume. I have turned my phone off and on, uninstalled and reinstalled the songs app, and restarted the tv and nothing has helped. I'm not sure how to fix this and the wait time on the phone is extremely long. Thank you for any help you can provide!