I think four systems are at play with my problem: Pandora; blue-tooth device drivers; Android handling of applications, and I am thinking Microsoft Teams. I use Bose earbuds - noise cancelling and sound is outstanding, and Costco had a good deal. For years pandora could be playing, an incoming phone call would pause Pandora for the call, and after the call disconnect Pandora would automatically start playing again. Very seamless. I can also double-tap the Bose earbud to toggle pandora between play and pause. Today the double-tap does work to toggle Pandora to pause / play. If I bring up another application - perhaps a news feed - the double-tap on the Bose earbud will still be received by the Pandora app and it will toggle pause / play. But - a phone call or a Teams connection will break that - now Pandora will not respond to the double-tap on the earbud, and it will not resume after a phone call. Even worse, if I disconnect the earbuds, with pandora paused in the background, it will arbitrarily start playing (over the Android phone speaker) at some random time. I was hoping a next release of Pandora app would fix my problem - but it is now at version 2503, up from 2411, and no change. I was thinking this was a problem with the Android operating system, but I am thinking it might, instead, be Teams, which seems to insert itself into every part of the phone - audio, camera, calendar, contacts, Teams seems to get into everything. Not really said in a helpful marketing way, but I like Pandora - the radio station concept works for me - seemed clunky when I first had to get used to it, and took a while to find stations that work for me, but I give it no attention, there is no interruption for spoken messages, it automatically expands the playlist with similar music, and I don't have to listen to my neighbors and background in a noisy environment. I suspect I would have the same problem with competing music apps. For now I will blame Teams.
