I am encountering a consistent, reproducible crash in our app when presenting a UIDatePicker configured with the calendar style. The crash triggers every single time the picker is invoked and points directly to the modern date picker's internal UICollectionView.
The Exception:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UICollectionView internal inconsistency: attempted to set layout with the collection view requiring a reload'
let datePicker = UIDatePicker() datePicker.datePickerMode = .date datePicker.preferredDatePickerStyle = .compact
This crash is occuring in inline style too when I try to open the calendar.
I tried this in other apps. It works fine. I didn't override any collectionView layouts