Using an iPad mini4 (A1538), running iOS 13 beta 6, using XCode 11 beta 5... Create a new iOS project using the Single View App template in XCode 11. Add a Settings.bundle with
I resolve this crash issue by change table view style to Group style on Child Pane. You just need to add 1 item with type is PSGroupSpecifier.
Had a similar issue. According to crashlogs the exception was caused by SwiftUI.
However, iOS 13.3 update has fixed it.
NB:a A separate bug leading to a settings crash in iOS 13 is related to using the value type "Number" in an item of type "PSTextFieldSpecifier".