I found that this problem faces many peple and I want to make sure whether it's a reported bug or something else.
The problem simply is a crash that occurs when you tap on a focused UITextField by 10-20 px away from it. The keyboard will disappear and reappear again and causing a crash after a while.
-[UITextInteractionAssistant(UITextInteractionAssistant_Internal) swallowsDoubleTapWithScale:atPoint:] + 272
Is there any temp. solution for this?