Are you absolutely positive that there’s nothing special about the headset in this interaction (low on battery, far away, muted, being overridden by a different, nearby bluetooth device that you aren’t interacting with, something else similar)?
I don’t think so, but I will keep looking.
When the sample app isn’t working, what does the decibel label read, is it moving or fixed? Can you try a different bluetooth device with the sample app?
In a separate post, I’ll give you logs for latest sample run. Short answer – decibel label doesn’t move at all.
It’s a good suggestion — I’ll have to get my hands on some other bluetooth devices.