Having the exact same experience. Start recording activity with a BLE device. External accessory communication and Background processing are checked in Signing & Capabilities. After I start the recording I lock the screen. App dies shortly after. It was working fine prior to ios 15.
miketsap
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Did you manage to solve this?I get the exact same behaviour from my react-native app on iOS.Shuts down after a minute. In my case it seems to work on iPhone11, but not on iPhone XR, 8 or 7.