I also get the same cell created multiple times, but mine ONLY happens when I use the method UICollectionViewDiffableDataSource.collectionView(_:cellForItemAt:) in my one of my section snapshot handlers. Without even editing the cell this will occur, all you have to do is access it using that method. Any help would be appreciated.

I am also having this issue, with the same console message as @texasexile. My code: struct ContentView: View { @State private var names: [NSString] = ["John","Hunter","Mark","Tom","Jeremy","Bill","Frank"] @State private var isTargeted: Bool = false let string = NSString("Test") var body: some View { GeometryReader { g in VStack(alignment: .leading) { ForEach(names, id: \.self) { name in HStack { Text(name as String) .padding() Spacer() } .border(Color.black) .onDrag { NSItemProvider(item: name, typeIdentifier: UTType.modelName.identifier) } } } .onDrop(of: [UTType.modelName], delegate: Delegate(list: $names)) .padding() } } } struct Delegate: DropDelegate { @Binding var list: [NSString] func performDrop(info: DropInfo) -> Bool { guard info.hasItemsConforming(to: [UTType.modelName]) else { return false } let providers = info.itemProviders(for: [UTType.modelName]) if let provider = providers.first { provider.loadItem(forTypeIdentifier: UTType.modelName.identifier) { (name: NSSecureCoding?, error: Error?) in if let name = name as? NSString { list.append(name) /* This part isn't finished */ } } } return true } } extension UTType { static let modelName: UTType = UTType("model.name")! } I am using NSString in this example, but I'm only doing this to test with a type conforming to NSSecureCoding since I was having issues in a more complicated sample.