swift - selectItem 時のコレクション ビュー レイアウトのバグ (Swift 5)

Question

viewDidLoad からセルを選択した後、レイアウトが変更されます

セル選択前

セル選択後

let indexPath = IndexPath(row: SelectedFolderIndex, section: 0)       
collectionView.selectItem(at: indexPath, animated: false, scrollPosition: .centeredVertically)

レイアウト

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    return CGSize(width: collectionView.frame.width/2.2, height: 55)
}

ViewDidLoad

let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
layout.sectionInset = UIEdgeInsets(top: 7, left: 12, bottom: 12, right: 12)
layout.minimumInteritemSpacing = 5
layout.minimumLineSpacing = 11
collectionView!.collectionViewLayout = layout
collectionView.delegate = self
collectionView.dataSource = self
collectionView.allowsMultipleSelection = false