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?

I need to create some records in CloudKit for each user when they start an app.I can't just write a seed function that create records. Because when the user starts the app in two devices, they will each write their own seed record.What I want instead is for the first device to write to CloudKit gets to create the record. And then second device will simply update the values of those records no recreate them.How can I achieve this?

The example they give in the doc is friends.@count https://developer.apple.com/documentation/coredata/nsderivedattributedescriptionBut is it possible to count the number of friends based on a condition? Like if friend.gender=male.@count?

If I'm using "class definition" mode to generate the core data classes from the model, I don't get to see the files. In that case, how do I share those files with the host app and extension app if the core data stuff is in a framework?

I'm completely stuck on this one 😟I'm just presenting a simple UICloudSharingController and set the delegate.Even though my itemThumbnailData and itemTitle delegate methods are called (I can see from debugger) but they take no effect.The controller still shows the screen with "Untitled" and place holder image. Why?Further more, cloudSharingControllerDidSaveShare is also not called back when I click save.