Using a convenience init for a UITableViewController in a freshly created Xcode project with storyboards crashes on iOS 15, but works fine on iOS 14. The error message: 'UIViewController is missing its initial trait collection populated during initialization. This is a serious bug, likely caused by accessing properties or methods on the view controller before calling a UIViewController initializer. How to reproduce Open Xcode 13 Create a new project with Storyboards Select iOS 14.0 for deployment info Create an empty UITableViewController class CustomTableViewController : UITableViewController {     var data:String?       convenience init() {     self.init(data: "test")   }       // Adding @objc fixes the crash   init(data: String) {     self.data = data     super.init(style: .plain)   }         required init?(coder: NSCoder) {     super.init(coder: coder)   } } Add the following to the main ViewController class ViewController: UIViewController {   override func viewDidLoad() {     super.viewDidLoad()     // Do any additional setup after loading the view.           _ = CustomTableViewController()   } } Run project on iOS 15.0 simulator The code works fine on an iOS 14.3 simulator. Prefixing init(data: String) with @objc fixes the problem. Am I doing something wrong? Is this a bug in UIKit on iOS 15?