Since iOS 15 was released. My app has suffer thousands of crashes (only in ios 15), and I don't know exactly why because I cant reproduce the error. The error is this: Crashed: com.apple.main-thread 0 MyAppName 0xa7464 CustomSlideMenuController.setNavBarToTheView() + 127 (CustomSlideMenuController.swift:127) 1 MyAppName 0xa6f4c @objc CustomSlideMenuController.viewDidLayoutSubviews() + 93 (CustomSlideMenuController.swift:93) 2 UIKitCore 0x18dea0 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 3092 3 QuartzCore 0x3f280 CA::Layer::layout_if_needed(CA::Transaction*) + 536 4 QuartzCore 0x31aa8 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 144 5 QuartzCore 0x460b0 CA::Context::commit_transaction(CA::Transaction*, double, double*) + 500 6 QuartzCore 0x4f174 CA::Transaction::commit() + 680 7 QuartzCore 0x31210 CA::Transaction::flush_as_runloop_observer(bool) + 88 8 CoreFoundation 0x41570 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 36 9 CoreFoundation 0x10854 __CFRunLoopDoObservers + 572 10 CoreFoundation 0xb8ec __CFRunLoopRun + 1052 11 CoreFoundation 0x1f3c8 CFRunLoopRunSpecific + 600 12 GraphicsServices 0x138c GSEventRunModal + 164 13 UIKitCore 0x51b0bc -[UIApplication _run] + 1100 14 UIKitCore 0x298be8 UIApplicationMain + 2124 15 MyAppName 0x6d94 main + 27 (AppDelegate.swift:27) 16 ??? 0x101b89a24 (More) The code is this (CustomSlideMenuController.swift) 90 override func viewDidLayoutSubviews() { 91 super.viewDidLayoutSubviews() 92 self.setNavBarToTheView() 93 self.setFooterToTheView() 94 } 95 96 func setNavBarToTheView() 97 { 98 if ( (navBar != nil) && (navBar?.subviews.contains(headerView))!) { 99 return 100 } 101 102 AppDelegate.getAppDelegate.slideMenuController.delegate = self 103 navController = AppDelegate.getAppDelegate.mainViewController.navigationController 104 navController.delegate = self 105 106 navBar = self.navController.navigationBar 107 navController.navigationBar.isTranslucent = false 108 109 navController.popToRootViewController(animated: false) 110 111 var frame: CGRect = headerView.frame 112 113 var statusBarHeight:CGFloat = 0.0 114 if #available(iOS 13.0, *) { 115 statusBarHeight = (UIApplication.shared.keyWindow?.windowScene?.statusBarManager?.statusBarFrame.height)! 116 }else{ 117 statusBarHeight = UIApplication.shared.statusBarFrame.height 118 } 119 120 frame.origin.y = frame.origin.y - statusBarHeight 121 frame.size.width = navBar.bounds.width 122 frame.size.height = navBar.bounds.height + statusBarHeight 123 124 headerView.custom_setConstraintValue(frame.size.width, to: NSLayoutConstraint.Attribute.width) 125 headerView.custom_setConstraintValue(frame.size.height, to: NSLayoutConstraint.Attribute.height) 126 headerView.frame = frame 127 navBar.addSubview(headerView) 128 } I tried to put the code inside the main thread but error persists. I use the app with an iphone, ipad, simulators... but I can't reproduce the error. All these crashes are in iOS 15. Any help? ios swift