My app is backing up / restoring data in the app using CloudKit. I've been using the same code since early 2020, and I've had the problem since a few months ago (around September 2021). The problem is as below. eg) If 30 pieces of data are uploaded using OperationQueue, the upload is completed within a few seconds. No error occurred in operation.perRecordCompletionBlock. Check the number of requested data using the CloudKit console log. However, if i use CKQuery to check the data, 1 or 2 pieces of data are missing for several minutes (approximately 10 minutes). This is the same whether you send a Query from the CloudKit console or use CKQuery using swift code. And after a few minutes, all the data is uploaded. Now, some users are writing this problem in reviews, but I have no way to solve it.