Great news, It looks like issue is fixed on XCode 14.3 ! :D

Hey, It goes away, but I cannot do async work when tapping the button. (The real-world application is to call an async func at this point) Does that mean it is impossible to use async functions pre-iOS 15 in swiftUI ?

Tanks to the people who mentioned Sherlock. After quitting the Sherlock app it started working properly again! I think the issue comes from the fact I was using a deprecated version.

Thanks for your answer but the cell il empty, so the issue doesn't come from the content being duplicated. Plus looking at the view hierarchy I can see that the cell is is indeed duplicated and not its content.

Well, it looks like not using the storyboard removes the issue in my test project but not in my real project. 😟

Alright.I created the collectionView and the cell programatically instead of using a storyboard CollectionViewController and I don't have the issue anymore 🤔. The search continues...(here is the updated code)// // ViewController.swift // testComposi // // Created by Hugo Saynac on 08/12/2019. // Copyright © 2019 Hugo Saynac. All rights reserved. // import UIKit class ColorCell: UICollectionViewCell { override init(frame: CGRect) { super.init(frame: frame) let imageView = UIImageView(image: imageLiteral(resourceName: "cat-smirk")) imageView.translatesAutoresizingMaskIntoConstraints = false addSubview(imageView) addConstraints([ imageView.leadingAnchor.constraint(equalTo: leadingAnchor), imageView.trailingAnchor.constraint(equalTo: trailingAnchor), imageView.topAnchor.constraint(equalTo: topAnchor), imageView.bottomAnchor.constraint(equalTo: bottomAnchor) ]) imageView.adjustsImageWhenAncestorFocused = true } required init?(coder aDecoder: NSCoder) { fatalError("Unavailable") } } class AViewController: UIViewController, UICollectionViewDataSource { override func viewDidLoad() { super.viewDidLoad() createCollectionView() } func numberOfSections(in collectionView: UICollectionView) -> Int { 10 } func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { return 10 } func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) } fileprivate func createCollectionView() { let layout = createLayout() let collectionView = UICollectionView(frame: .zero, collectionViewLayout: layout) view.addSubview(collectionView) collectionView.translatesAutoresizingMaskIntoConstraints = false view.addConstraints([ collectionView.leadingAnchor.constraint(equalTo: view.leadingAnchor), collectionView.trailingAnchor.constraint(equalTo: view.trailingAnchor), collectionView.topAnchor.constraint(equalTo: view.topAnchor), collectionView.bottomAnchor.constraint(equalTo: view.bottomAnchor) ]) collectionView.register(ColorCell.self, forCellWithReuseIdentifier: "Cell") collectionView.dataSource = self } } func createLayout() -> UICollectionViewLayout { UICollectionViewCompositionalLayout { (section, _) -> NSCollectionLayoutSection? in let item = NSCollectionLayoutItem( layoutSize: NSCollectionLayoutSize(widthDimension: .fractionalWidth(1), heightDimension: .fractionalHeight(1))) let group = NSCollectionLayoutGroup.horizontal( layoutSize: NSCollectionLayoutSize( widthDimension: .absolute(350), heightDimension: .absolute(300)), subitem: item, count: 1) let section = NSCollectionLayoutSection(group: group) section.interGroupSpacing = 50 section.orthogonalScrollingBehavior = .continuous section.contentInsets = NSDirectionalEdgeInsets(top: 0, leading: 0, bottom: 40, trailing: 0) return section } } extension UIColor { static var random: UIColor { return .init(hue: .random(in: 0...1), saturation: 1, brightness: 1, alpha: 1) } }

It doesn't appear to come from the image as I reproduce the issue with a single label in my CollectionViewCell

Hi !I'm "Glad" I'm not alone having this issue.I created a sample project with one simple collection view and an image in the cell and I reproduce the issue.Here is the code:import UIKit import TVUIKit class AViewController: UICollectionViewController { lazy var layout = createLayout() override func viewDidLoad() { super.viewDidLoad() collectionView.setCollectionViewLayout(layout, animated: false) } override func numberOfSections(in collectionView: UICollectionView) -> Int { 10 } override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { return 10 } override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) } func createLayout() -> UICollectionViewLayout { UICollectionViewCompositionalLayout { (section, _) -> NSCollectionLayoutSection? in let item = NSCollectionLayoutItem( layoutSize: NSCollectionLayoutSize(widthDimension: .fractionalWidth(1), heightDimension: .fractionalHeight(1))) let group = NSCollectionLayoutGroup.horizontal( layoutSize: NSCollectionLayoutSize( widthDimension: .absolute(350), heightDimension: .absolute(300)), subitem: item, count: 1) let section = NSCollectionLayoutSection(group: group) section.interGroupSpacing = 50 section.orthogonalScrollingBehavior = .continuous section.contentInsets = NSDirectionalEdgeInsets(top: 0, leading: 0, bottom: 40, trailing: 0) return section } }To observe the issue you can just open the view hierarchy debugger after a few scrolls up and down and you should see the duplicated cells