I work with Core Data and I needed to change CloudKit container in Singing & Capabilities. I've done it successed, I think. But when I run my app, NSCloudKitMirroringDelegate returns the error with user info:
NSLocalizedFailureReason=Subscription save succeeded but did not return 'com.apple.coredata.cloudkit.shared.subscription' as a saved subscription
I've registred my app's ID and I've checked iCloud. Thanks in advanced.