CloudKit outage sees some apps experience (temporary) user data loss, Apple working on fix
There appears to be some prolonged issues with Apple’s CloudKit service today, which Apple offers to developers as a way to store user data and sync across devices. Several developers have reported to us that they have seen data for their apps temporarily wiped in the last 24 hours as the CloudKit service experiences some form of outage.
The developer system status page is reporting an issue with the CloudKit Dashboard, the backend admin interface that developers use to manage their CloudKit containers. Clearly, these issues affect more than just the dashboard, but Apple’s system status page does not have an entry for CloudKit itself.