I Bought a space A40, updated firmware to 4.19, during WhatsApp calls, or using Microsoft teams on a laptop, People stops hearing me after 10 minutes, if I reconnect the problem solves for more 10 minutes, although I can hear them, they can’t hear me.
I have tried unpairing them, hard resetting by pressing case button for over 10 seconds, nothing really solves this. I have a Q30 that works just fine.
Seems like a firmware issue, as there are people in reddit with same issue and in this forum as well.