Hi If anyone still having same problem, try this: In my case I faced the problem when I was using list layout I changed my code from this: private func createListLayout() -> UICollectionViewLayout {     var config = UICollectionLayoutListConfiguration(appearance: .insetGrouped)     config.backgroundColor = UIColor.white     config.headerMode = .supplementary     let layout = UICollectionViewCompositionalLayout.list(using: config)     return layout } To this code:  private func createListLayout() -> UICollectionViewLayout {     let layout = UICollectionViewCompositionalLayout() { sectionIndex, layoutEnvironment in         var config = UICollectionLayoutListConfiguration(appearance: .insetGrouped)         config.backgroundColor = UIColor.white         config.headerMode = .supplementary         let section = NSCollectionLayoutSection.list(using: config, layoutEnvironment: layoutEnvironment)         let headerSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0), heightDimension: .estimated(144))         let sectionHeader = NSCollectionLayoutBoundarySupplementaryItem(             layoutSize: headerSize,             elementKind: "myElementKind", alignment: .top)         section.boundarySupplementaryItems = [sectionHeader]         return section     }     return layout } And this is my provider if you need: dataSource.supplementaryViewProvider = { (collectionView, kind, indexPath) in     let header = collectionView.dequeueReusableSupplementaryView( ofKind: "myElementKind", withReuseIdentifier: "myIdentifier", for: indexPath) as! MyCustomHeader     // code     return header } This worked for me I hope this works for you as well. Best regards.