I updated my iMac to Sequoia 15.0 yesterday. I have now lost control on volume of my Sonos systems regardless of the app I use for playback. Whether I use the volume control on the Sonos app, Apple Music (iTunes) app or the Roon app when I set to the volume to the level I wish to listen it will in seconds automatically reduce the volume significantly to a very low volume level. It does not matter at what volume level I set it it reduces to the one singular volume level.
Answered
Loss Of Volume Control With Mac OS Sequoia 15.0 Update
Best answer by AjTrek1
Try deleting the Sonos App and reinstalling it. Once re-installed select “Join an existing system”.
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