I'm having a similar issue with my apps which have an audio input feature.
One of them uses 44100 as a sample rate and got the error on iOS / iPadOS 16. In that case, AVAudioSession.shared.sampleRate seems to be 48000, and changing the sample rate to 48000 resolved the error.
Another one uses 11025 as a sample rate. This app needs to use a lower sample rate than 44100 / 48000, but I'm not sure how to workaround.
_bismark
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Still having this issue on iOS 15 beta2.
I guess that an AdHoc *.ipa built with Xcode 12.4 is NG, but one built with Xcode 12.5 seems to be OK.
Can anyone double-check?
I confirmed that iPadOS 14.2 beta4 resolves this issue!
Just confirmed this has not been resolved on OS 14.1.
Has anyone checked 14.2 beta?