In iOS 15, when the iPhone power off and restart the app no longer restore via BLE.

My iOS app implements the BLE preservation and restoration bahaviour , Which means If a BLE operation (scan, connect, disconnect, ...) was running and the user power off the phone and restart it then unlocked, if user enters the range of a the device that is related to the running operation before power off, system automatically awakes the app, This was working fine on iOS 14 and below. I updated my device to iOS 15 and app no longer gets awoken while entering a BLE region .