Thanks for the reply, yes Radar filed with ID: FB20611108

You can either press the button, or press the return key on the keyboard. In both cases the keyboard abruptly disappears on both the simulator and iPhone 17 pro. Here's a video from the simulator: https://www.dropbox.com/scl/fi/8qc7is8iqpcjigta71qbq/keyboarddismissal.mov?rlkey=ftgnuoiu4x6mc8qokh5xw22b1&st=bpqb26b8&dl=0 I see others reporting similar issues here: https://github.com/facebook/react-native/issues/53626

While not ideal, but you can use the MIDI protocol that is supported over the Camera Connection Kit for lightning ports, or with a regular USB-C cable for USB-C ports. While the MIDI protocol is pretty old it supports sending data in MIDI System Exclusive messages. It should work just fine for any type of devices, not just musical instruments.

@benwiggy This was the only way I could reliably start and stop audio feedback. viewWillDisappear is not called immediately when you navigate away from your file, it looks like the OS keeps 2-3 preview controllers active as you navigate between files. Here's the workaround that seem to work on Ventura: https://stackoverflow.com/a/76433758/1182910