FB22393059 feedback assistant ID

Refactoring fetchDescriptor to work as a fetch descriptor for Asset instead solved the crash static func fetchDescriptor(nameStartingWith prefix: String) -> FetchDescriptor<Asset> { let predicate = #Predicate<Asset> { asset in asset.name.starts(with: prefix) } return FetchDescriptor<Asset>(predicate: predicate) }```

Changing the name from Asset to anything else solved the issue for me.

@DTS Engineer Thanks a lot for providing the sample, I have tested it out in the sample project and it does work. It works as expected when contained inside a SwiftUI View. To narrow the problem down it seems that the issue stems from superclass model ID being used inside an @Observable macro object. For context I have a @Observable object NavigationStore that contains state related to navigation such as selection. When specifying an array of Asset.ID inside that I get aforementioned error 'ID' is inaccessible due to '@_spi' protection level. Expanding the macro another error is given, Cannot yield reference to storage of type 'Set<Asset.ID>' (aka 'Set<PersistentIdentifier>') as an inout yield of type '<<error type>>'. To reproduce you can use this code block: @MainActor @Observable public final class NavigationStore { // MARK: - Selection var assetSelection: Set<Asset.ID> = [] } @Model public class Asset { // MARK: - Properties var name: String = "" } @available(macOS 26.0, *) @Model public class ImageAsset: Asset { // MARK: - Properties var imageName: String = "image" } @main struct MyApp: App { @State private var navigationStore: NavigationStore = NavigationStore() var body: some Scene { WindowGroup { Text("Hello World!") } .modelContainer( for: [ AssetGroup.self, Asset.self, ColorAsset.self, ImageAsset.self, SymbolAsset.self ], isUndoEnabled: true ) } Thanks again for taking the time!

Not exactly sure what you mean with proper relationship, could you elaborate here? Using [Asset] will prevent the .dragContainer modifier from working to my understanding, as it expects a transferable item type and likewise an array of the Item.ID that matches the item type for selection. https://developer.apple.com/documentation/swiftui/view/dragcontainer(for:in:selection:_:)

Feedback Assistant ID: FB18054420