Navigation title not visible in SplitViewController in macCatalyst on iOS 26

We are using a column style split view controller as root view of our app and in iOS26 the navigation titles of primary and supplementary view controllers are not visible and secondary view controller title is displayed in supplementary column.

Looks the split view hidden all the child view controllers title and shown the secondary view title as global in macCatlayst. The right and left barbutton items are showing properly for individual view controllers.

Facing this weird issue in iOS26 betas. The secondary navigation title also visible only when WindowScene,titlebar.titleVisibility is not hidden.

Kindly suggest the fix for this issue as we can't use the secondary view navigation title for showing supplementary view's data. The issue not arises in old style split views or when the split view embedded in another splitView.

Refer the sample code and attachment here

        let splitView = UISplitViewController(style: .tripleColumn)
        splitView.preferredDisplayMode = .twoBesideSecondary
        splitView.setViewController(SplitViewChildVc(title: "Primary"), for: .primary)
        splitView.setViewController(SplitViewChildVc(title: "Supplementary"), for: .supplementary)
        splitView.setViewController(SplitViewChildVc(title: "Secondary"), for: .secondary)

class SplitViewChildVc: UIViewController {
    
    let viewTitle: String
    
    init(title: String = "Default") {
        self.viewTitle = title
        super.init(nibName: nil, bundle: nil)
    }
  
    override func viewDidLoad() {
        super.viewDidLoad()
        self.title = viewTitle
        self.navigationItem.title = viewTitle
        if #available(iOS 26.0, *) {
            navigationItem.subtitle = "Subtitle"
        }
        
        let leftbutton = UIBarButtonItem(barButtonSystemItem: .cancel, target: nil, action: nil)
        navigationItem.leftBarButtonItem =  leftbutton
        
        let rightbutton = UIBarButtonItem(barButtonSystemItem: .add, target: nil, action: nil)
        navigationItem.rightBarButtonItem =  rightbutton
    }
}