CKFetchRecordZoneChangesOperation breaks NSPersistentCloudKitContainer when called inside AppDelegate?

I'm trying to call CKFetchRecordZoneChangesOperation to get the latest changes from the shared database.


But when I run that operation from inside didFinishLaunchingWithOptions, NSPersistentCloudKitContainer will break. It will save to coredata, but it will no longer sync to Cloudkit. It's as if it's paused. When I restart the app, the sync resumes.


But if I call CKFetchRecordZoneChangesOperation later in the app lifecycle, say in viewDidLoad, everything works fine. Why is this?

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Who is the delegate in teh case of calling from the AppDelegate? Who is the delegate in the case of calling from viewDidLoad?

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PBK
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