I have a Logitech Blue Tooth audio adapter which has been working for like 2 years. All of a sudden, in sys preferences, it automatically switches to built-in sound.
The bluetooth, is connected in bluetooth settings, and the sound device appears in the sound settings. But when I select it, it selects for 1 second, then goes back to built-in sound.
I've restarted, shut-down and wait, reset smc, pram, reset bluetooth, reset device and none of that affects this.
Is this a bluetooth problem, a logitech problem, or a mac problem? I can't get any help from Logitech because I have no credit with them and their support and website is trash.