Tested my app which uses CloudKit automatic configuration. The data will sync correctly on iOS 26.5 beta 1 now. Hope Apple will push an update for 26.4.1 soon.

I have tested my apps, the sync issues have been fixed in iOS 26.4.1. Cross syncing between 26.4.1 and 26.5 beta works fine too.

Hello, I can confirm that there is a bug in iOS 26.4.2 when testing local StoreKit 2 in Xcode. The Transaction.unfinished loop has nothing inside, although the transaction manager clearly shows there are unfinished transactions. If testing it on iOS 18.6 (only on simulator), it will loop through unfinished and successfully clear any unfinished transactions. Also it might be possible that the local storekit daemon is out of sync, I have filed a bug report for that under: Transaction.currentEntitlements sometimes does not emit a result until device is reboot (FB22349195)