I recently ran an update on my Mac OS to Sonoma v14.7.6
Some of the button functionality changed on my Ace headphones. The side button no longer starts and stops my music and instead calls Siri, same behavior whether I short or long press.

I tested my headphones on my phone and everything works the same as it always has, so this seems to be an issue only on my desktop OS, not the headphones themselves.

I ran a firmware update from the app on my phone. This started causing even more strange behavior with noise cancellation not entirely canceling the noise, so I ended up trying a factory reset. That also went sideways because I could never get a blinking light to indicate they were reset. However after many attempts, my phone recognized them as a new device, so something happened.

After a lot of resetting, re-pairing, rebooting, and changing settings, I finally got the noise cancellation to work properly on my Mac OS. It required disabling the new “sidetone” and “adaptive “cancellation” features that were added in the latest update since my desktop OS does not seem to know what to do with them. The noise canceling mode was never fully functional and was some sort of halfway between noise canceling and aware mode making everything sound a little weird.

I installed the Sonos app on my desktop computer, but it didn’t give me any bluetooth options for the headphones, so that went nowhere. I’m on a work machine and can’t connect to the ridiculous Sonos ecosystem, so I’m wholly reliant on my phone app to manage any settings. They don’t translate well to my desktop though, apparently.

Everything was working ok until these recent updates. I’m back to familiar sound quality, but no stop/start functionality with the side button. All other functions work, noise canceling toggle, volume up/down, power toggle all ok. I disabled Siri altogether since it was terribly annoying getting a prompt every time I tried to start and stop my music. Anyone had this issue with the buttons getting confused? How do I reconfigure on Mac?