Hi - I’m not an iOS developer so I won’t be of much help but two things may help you: I am experiencing issues with my BLE car key app beginning with Public Beta about 3-4 weeks ago. It’s still happening in the now released ios 16 version, so I do feel like something was changed. My issues go away for 24-48 hours after restarting my phone. This may or may not help you at least while testing.