I'm converting my collection view to new iOS13 UICollectionViewDiffableDataSource... so I need to update cell information on demand.Here is my code:let snap = self.diffDataSouce.snapshot snap?.reloadItems(withIdentifiers: [itemToUpdate]) //reload cell infoself.diffDataSouce.apply(snap, animatingDifferences: true)But I get Invalid parameter not satisfying: indexPath || ignoreInvalidItems ...why? My current snap contains itemToUpdate and also my array of models... I think it's because snap.indexOfItemIdentifier(itemToUpdate) returns not found (NSNotFound)...but that's should be impossible according data model. Have you some hints?