Some additional info: it appears to be specifically iOS 17.4 and above, so far on the following device models: iPhone XR, iPhone XS, iPhone XS Max
I'm able to reproduce 100% on an iPhone XR by making the SNClassifySoundRequest after locking the screen/putting app in background.
adamipnos
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The AVDelegatingPlaybackCoordinator gives you the flexibility to control any other playback objects that aren't an AVPlayer
You could maybe try implementing your own coordinator, it is talked about a bit in this WWDC session.