If I do something like this: var viewControllers = navigationController.viewControllers if let lastViewController = viewControllers.popLast() { navigationController.viewControllers = viewControllers navigationController.pushViewController(lastViewController, animated: false) } } I got crash: pushing the same view controller instance more than once If I set delay: var viewControllers = navigationController.viewControllers if let lastViewController = viewControllers.popLast() { navigationController.viewControllers = viewControllers DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { navigationController.pushViewController(lastViewController, animated: false) } } it will work but with unnecessary transitions. Should it work like this in iOS 18 ?

iOS 18 22A5282m navigationController.viewControllers = [UIViewController()] or navigationController.setViewControllers([UIViewController()], animated: false) doesn't change navigation stack anymore.