We are experiencing the same issue too in our video recording app. We use the averagePowerLevel and peakHoldLevel to provide the user with volume meters and this aspect of the app is now broken. Thanks for the possible workaround, eddiewangyw. However, I am not super keen on implementing a workaround - it might break other things since the audio and video capture aspects of our app are working fine. It would be good to know if this issue is being considered for fixing in iOS 26.5 or earlier. It does not seem to have been fixed in the existing 26.5 beta. I have raised a feedback report as FB22435501. Thanks.