Bluetooth headphones work on some meetings and not others

Hardware/Software:

Mac M1 on Sonoma 14.4.1

Bose QuietComfort 700 headphones

Zoom Workplace 6.0.72

Problem:

I connect my headset to my computer as default sound input and output. I enter a meeting, headset works great. I leave that meeting and go to another meeting. No sound. When I run the audio tests I get activity bars for microphone input and sound output but I hear nothing on playback and no one can hear me talk.

I've done various restarts and connect/disconnects, tried switching between "system" and the entry for the headset. I can't find any true pattern to when it's going to fail, but usually it works for the first meeting and fails for the second one.