Wyze OG Cam microphone cuts out after 15 seconds

Need Help / Advice
I have 2 OG Cams, When connecting to any camera and viewing live, I have no sound broadcasting to outside person after about 15 seconds, but can use the mic and send voice. On recordings there is sound, it’s just when connecting live. So if there was a person I wanted to communicate to, they CANNOT hear me on the camera, but I CAN hear them on my phone. All up to date on cameras etc. I have rebooted everything, re-formatted all cameras, still no change.