Sent an email to support. I will report back when I hear something.

Can you guys send an email to Support and let us know the response ? Is there anything in common here, like all being wifi cameras or anything ? Mine are wifi and hardwired, and are different brands. EDIT: Just watched it happen when I rebooted the camera. Comes up with audio unchecked. My cameras ...

I have the exact same issue. Audio is working if I access the cameras directly, but Enable Audio box gets unchecked in BI Camera Settings. Happens on several cameras.