RootViewController does not appear on swipe in SplitViewController when installing a delegate?

Question

iOS

If the UISplitViewControllerDelegate delegate is not set, then the picture is normal, I can "pull out" my RootViewController with a swipe:

Once I set the delegate:

// MARK: Lifecycle methods

  override func viewDidLoad() {
    super.viewDidLoad()

    splitViewController?.delegate = self
    
  }

I can’t “pull out” anything more with a swipe. You have to switch to landscape mode and work from there. Why is this happening?

Answer 1

Maybe you're overriding the delegate methods somehow incorrectly .
To experiment, create an empty master-detail project and check how the application behaves if you set or do not set a delegate.