The behavior changed again in Xcode 26, and only alpha check method still works.

@DCS17 No solution right now. Everything related is provided by CloudKit itself. Maybe fixed after removing the 5gb ram limit per app, because same code works fine on macOS or Simulator.

Instrument sample and sysdiagnose of iOS 15.2 beta2 is uploaded. FB9659774.

PS: [feature request]I think Xcode should be able to download/replace Shared AppGroup content.

Sqlite file is not stored in default folder but AppGroup such as /private/var/mobile/Containers/Shared/AppGroup/F5E9858B-BFA8-43C0-8648-B6FB169A4D98/Model.sqlite, app container can not be download from Xcode.(ps: change sqlite path or not is not related to this problem)

FB9659774

Can I have your mail address for debug? My address is feedback + @ + lights.app.

iOS 15.1 beta 2 does not fix it.