I was one of those who noticed immediately that I could not mute my radio while backing up into my garage. I was happy to notice when 7.1 came out, that this was fixed, even explicitly mentioned in the release notes. Yesterday I noticed that the mute functionality from the steering wheel stopped working completely, no matter what is displayed on the instrument cluster. I rebooted the big screen twice and the instrument cluster once, still the same problem. Volume up/down and long press works fine to switch cluster app on the left, so it's not a switch hardware issue. I am almost certain mute worked just fine after the summon update and I haven't installed any new updates, so I'm confused as to what changed. Did Tesla update me without my knowledge with a firmware with this bug (I say bug rather than a feature since the release notes still say I can mute the radio from steering wheel)? Maybe there are minor updates that get quietly pushed out as part of fleet learning?