I am experiencing a bug on my iPhone 13 after updating to iOS 18 beta 5. This bug causes my phone to unexpectedly show a black screen with a "loading" indicator, and then it returns to the lock screen. I have to unlock it for the phone to return to normal. This issue occurs repeatedly. I am not entirely sure what is happening with my device. I believe it is also experiencing overheating issues. Although the battery seems to be optimized, the phone is getting hot and still has the same bug mentioned above after the iOS 18 beta 5 update. Please help me, I would like to so much resolve this issue.