Button click not working with SwiftUI added in UIKIT

I am using Main.StoryBoard with UIViewController, Now i have added SwiftUIView Inside This at top of the Storyboard as

The Code of View Controller is

import UIKit
import SwiftUI
extension UIView {
    func addConstrained(subview: UIView) {
        subview.translatesAutoresizingMaskIntoConstraints = false
        subview.topAnchor.constraint(equalTo: topAnchor).isActive = true
        subview.leadingAnchor.constraint(equalTo: leadingAnchor).isActive = true
        subview.trailingAnchor.constraint(equalTo: trailingAnchor).isActive = true
        subview.bottomAnchor.constraint(equalTo: bottomAnchor).isActive = true
    }
}

class ViewController: UIViewController {
    
    @IBOutlet weak var topNavView: UIView!
    
    let childView = UIHostingController(rootView: TempView())

    override func viewDidLoad() {
        super.viewDidLoad()
        childView.view.frame = CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 152)
        addChild(childView)
        topNavView.addSubview(childView.view)
        childView.didMove(toParent: self)
        topNavView.addConstrained(subview: childView.view)
        childView.view.isUserInteractionEnabled = true
    }
    
}

The swiftUI View is---

import SwiftUI

struct TempView: View {
    var body: some View {
        ZStack {
            Color.green
            VStack {
                
                Button {
                    print("clicked 1")
                } label: {
                    Text("Button1")
                }
                .frame(width: 70, height: 60, alignment: .center)
                Button {
                    print("clicked 2")
                } label: {
                    Text("Button2")
                }
                .frame(width: 70, height: 60, alignment: .center)
                
                
                
            }
        }
        //.background(.red)
        .frame(height:100)
        
    }
}

struct TempView_Previews: PreviewProvider {
    static var previews: some View {
        TempView()
    }
}

When i click on Button1 & Button2 I am not able to click. but when i rotate device (Landscape ) it's working fine.. what could be the issue ?