Thank you for your response and for the suggestions. Here are the case I tried. Create simple app on tvOS (26.0) in Swift (interface=storyboard) XCode v26.3 tvOS v26.0 Update ViewController.swift file import UIKit import AVKit class ViewController: UIViewController { let playerViewController = AVPlayerViewController() let button: UIButton = { let btn = UIButton(type: .system) btn.setTitle("Show video", for: .normal) btn.translatesAutoresizingMaskIntoConstraints = false return btn }() override func viewDidLoad() { super.viewDidLoad() configureButton() } func configureButton() { view.addSubview(button) NSLayoutConstraint.activate([ button.centerXAnchor.constraint(equalTo: view.centerXAnchor), button.centerYAnchor.constraint(equalTo: view.centerYAnchor) ]) button.addTarget( self, action: #selector(showVideo), for: .primaryActionTriggered ) } @objc func showVideo() { present(playerViewController, animated: true) } } After button is pressed: `UIScene` lifecycle will soon be required. Failure to adopt will result in an assert in the future. UITextView 0x105823800 is switching to TextKit 1 compatibility mode because its layoutManager was accessed. Break on void _UITextViewEnablingCompatibilityMode(UITextView *__strong, BOOL) to debug. Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. ( "<NSLayoutConstraint:0x60000213d3b0 UIStackView:0x105546170.width >= 217 (active)>", "<NSLayoutConstraint:0x60000213d400 H:|-(>=95)-[UIStackView:0x105546170] (active, names: '|':UIView:0x105544280 )>", "<NSLayoutConstraint:0x60000213d450 UIStackView:0x105546170.trailing == UIView:0x105544280.trailing - 95 (active)>", "<NSLayoutConstraint:0x60000213d590 H:|-(0)-[UIView:0x105544280] (active, names: '|':_AVFocusContainerView:0x105524a70 )>", "<NSLayoutConstraint:0x60000213d5e0 UIView:0x105544280.trailing == _AVFocusContainerView:0x105524a70.trailing (active)>", "<NSLayoutConstraint:0x60000213e710 '_UITemporaryLayoutWidth' _AVFocusContainerView:0x105524a70.width == 0 (active)>" ) Will attempt to recover by breaking constraint <NSLayoutConstraint:0x60000213d3b0 UIStackView:0x105546170.width >= 217 (active)> Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful. Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. ( "<NSLayoutConstraint:0x60000213d400 H:|-(>=95)-[UIStackView:0x105546170] (active, names: '|':UIView:0x105544280 )>", "<NSLayoutConstraint:0x60000213d450 UIStackView:0x105546170.trailing == UIView:0x105544280.trailing - 95 (active)>", "<NSLayoutConstraint:0x60000213d590 H:|-(0)-[UIView:0x105544280] (active, names: '|':_AVFocusContainerView:0x105524a70 )>", "<NSLayoutConstraint:0x60000213d5e0 UIView:0x105544280.trailing == _AVFocusContainerView:0x105524a70.trailing (active)>", "<NSLayoutConstraint:0x60000213e710 '_UITemporaryLayoutWidth' _AVFocusContainerView:0x105524a70.width == 0 (active)>" ) Will attempt to recover by breaking constraint <NSLayoutConstraint:0x60000213d450 UIStackView:0x105546170.trailing == UIView:0x105544280.trailing - 95 (active)> Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful. Setting modalPresentationStyle once <AVPlayerViewController: 0x106026000> has been presented will have no effect until it is dismissed and presented again. BTW, I get no warnings when I test it on iOS.