My iOS app (use swift to develop), when show the view which using uitableview, sometimes the app will crash without any debug message on iOS simulator and My iPhone. When it crash, the all app can not use anymore, i can't scroll the screen and the back button does not work also. The cpu utility is very high (75% or more), memory use is normal(32MB). This kind of crash sometimes happen, not every times, How can i fix this issue?
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