Hi everyone, I'm encountering an unexpected behavior with modal presentations in UIKit. Here’s what happens: I have UIViewControllerA (let’s call it the "orange" VC) pushed onto a UINavigationController stack. I present UIViewControllerB (the "red" VC, inside its own UINavigationController as a .formSheet) modally over UIViewControllerA. After a short delay, I pop UIViewControllerA from the navigation stack. Issue: After popping UIViewControllerA, the modal UIViewControllerB remains visible on the screen and in memory. I expected that dismissing (popping) the presenting view controller would also dismiss the modal, but it stays. Expected Behavior: When UIViewControllerA (orange) is popped, I expect the modal UIViewControllerB (red) to be dismissed as well. Actual Behavior: The modal UIViewControllerB remains on screen and is not dismissed, even though its presenting view controller has been removed from the navigation stack. Video example: https://youtube.com/shorts/sttbd6p_r_c Question: Is this the expected behavior? If so, what is the recommended way to ensure that the modal is dismissed when its presenting view controller is removed from the navigation stack? Code snippet: class MainVC: UIViewController { private weak var orangeVC: UIViewController? override func viewDidLoad() { super.viewDidLoad() self.view.backgroundColor = .blue let dq = DispatchQueue.main dq.asyncAfter(deadline: .now() + 1) { [weak self] in let vc1 = UIViewController() vc1.view.backgroundColor = .orange vc1.modalPresentationStyle = .overCurrentContext self?.navigationController?.pushViewController(vc1, animated: true) self?.orangeVC = vc1 dq.asyncAfter(deadline: .now() + 1) { [weak self] in let vc2 = UIViewController() vc2.view.backgroundColor = .red vc2.modalPresentationStyle = .formSheet vc2.isModalInPresentation = true let nav = UINavigationController(rootViewController: vc2) if let sheet = nav.sheetPresentationController { sheet.detents = [.medium()] } self?.orangeVC?.present(nav, animated: true) dq.asyncAfter(deadline: .now() + 1) { [weak self] in self?.navigationController?.popViewController(animated: true) } } } } } Thank you for your help!

Description When using UIDocumentPickerViewController with allowsMultipleSelection = false, I expect that selecting a file will dismiss only the document picker. However, if a user quickly taps the same file multiple times, the picker dismisses both itself and the presenting view controller (i.e., it pops two levels from the view controller stack), which leads to unintended behavior and breaks presentation flow. Expected Behavior Only UIDocumentPickerViewController should be dismissed when a file is selected—even if the user taps quickly or multiple times on the same file. Actual Behavior When tapping the same file multiple times quickly, the picker dismisses not only itself but also the parent view controller it was presented from. Steps to Reproduce Create a simple view controller and present another one modally over it. From that presented view controller, present a UIDocumentPickerViewController with allowsMultipleSelection = false. Tap quickly on the same file in the picker 2 times. Result: Both the document picker and the presenting view controller are dismissed. Reproducible Code Snippet class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() view.backgroundColor = .green addLabel("Parent View Controller") DispatchQueue.main.async { [unowned self] in let child = UIViewController() child.view.backgroundColor = .yellow present(child, animated: true) child.addLabel("Child View Controller") let vc = UIDocumentPickerViewController( forOpeningContentTypes: [.pdf, .jpeg, .png], asCopy: true ) vc.allowsMultipleSelection = false child.present(vc, animated: true) } } } extension UIViewController { func addLabel(_ text: String) { let label = UILabel(frame: CGRect(x: 0, y: 50, width: view.bounds.width, height: 30)) label.text = text view.addSubview(label) } } Environment Device: iPhone 15 Pro and others iOS version: 18.2 (reproduces on multiple iOS versions) Occurs with: .pdf, .jpeg, .png file types Mode: Both simulator and real device Notes Happens consistently with fast multiple taps on the same file. This breaks expected view controller stack behavior.