If you run the app and keep pressing next, it works well. current question moves out towards left, next question appears from right to left. But if I switch the direction to previous, current question moves out towards left( should move out towards right) next question comes in from left to right( which is correct). Similar discrepancy happens when I switch direction from prev to next. Why is this so? import SwiftUI struct Question { let id: Int let text: String } extension AnyTransition { static var slideRight: AnyTransition { let insertion = AnyTransition.move(edge: .trailing) let removal = AnyTransition.move(edge: .leading) return .asymmetric(insertion: insertion, removal: removal) } static var slideLeft: AnyTransition { let insertion = AnyTransition.move(edge: .leading) let removal = AnyTransition.move(edge: .trailing) return .asymmetric(insertion: insertion, removal: removal) } } struct QuizView: View { let questions = [ Question(id: 1, text: "11111111111"), Question(id: 2, text: "222222222222222222222222"), Question(id: 3, text: "3333333333333333333"), Question(id: 4, text: "444444444444444444444444"), Question(id: 5, text: "55555555555555555555"), Question(id: 6, text: "6666666666666666666666666") ] @State private var currentQuestionIndex = 0 @State private var navigationDirection: NavigationDirection = .forward var body: some View { VStack(spacing: 20) { Text(questions[currentQuestionIndex].text) .id(questions[currentQuestionIndex].id) // Important for transition .transition(navigationDirection == .forward ? .slideRight : .slideLeft) .frame(maxWidth: .infinity, maxHeight: .infinity) HStack { Button("Previous") { moveToPreviousQuestion() } .disabled(currentQuestionIndex == 0) Spacer() Button("Next") { moveToNextQuestion() } .disabled(currentQuestionIndex == questions.count - 1) } } .padding() .animation(.easeInOut(duration: 1.0), value: currentQuestionIndex) } private func moveToNextQuestion() { if currentQuestionIndex < questions.count - 1 { navigationDirection = .forward currentQuestionIndex += 1 } } private func moveToPreviousQuestion() { if currentQuestionIndex > 0 { navigationDirection = .backward currentQuestionIndex -= 1 } } } enum NavigationDirection { case forward, backward }

My apps were working fine and suddenly started crashing on older devices. I have iPhone 7 Plus to test and after updating it to 15.7.8, the installed apps which were working before started crashing. The specific code where they are crashing is if([testStats objectForKey:TEST_STATS_ARRAY]) { statArray = [testStats objectForKey:TEST_STATS_ARRAY]; } else { statArray = [[NSMutableArray alloc] init]; [testStats setValue:statArray forKey:TEST_STATS_ARRAY]; }