Hi Ziqiao, I've tried with iOS 26 Beta 7 and since Beta 8 (landed tonight) on device (because my Xcode is stuck on iOS Beta 6, don't know why) and the problem is solved. I can now query CollectionItem with predicate that contains inherited properties. Now I have only got problems with accesses to the children property in List. When i got the following hierarchy and the SwiftUI view List access to the Item.children property I got another kind of crash. Category: Work (parent: none) Category: Tech (parent: Work) Thread 1: Fatal error: Never access a full future backing data - PersistentIdentifier(id: SwiftData.PersistentIdentifier.ID(backing: SwiftData.PersistentIdentifier.PersistentIdentifierBacking.managedObjectID(0x9872c0007ba42159 ))) with Optional(7639D151-5D48-46AC-AB2A-7F0F50919AC5) But I guess it's a different kind of problem now.
Topic:
App & System Services
SubTopic:
iCloud & Data
Tags: