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CloudKit Production sync fails with CKInternalErrorDomain 1011 and BAD_REQUEST on _pcs_data
Hi, I’m seeing a CloudKit Production sync failure in an iOS app using SwiftData/Core Data with private CloudKit mirroring. Sync worked correctly after release, then stopped working without any new app build being released. Device logs show: CKInternalErrorDomain Code=1011 and Core Data reports that CloudKit mirroring was never successfully initialized. CloudKit Production logs also show a native PRIVATE database request failing with: USER_ERROR / BAD_REQUEST involving the internal record type: _pcs_data The Production schema, private zone, and subscription are still present. I have not reset Production or deleted any zones/subscriptions. I have already filed a Feedback Assistant report with diagnostics. Has anyone seen this pattern before? Is there a safe developer-side remediation, or is this typically an Apple-side CloudKit/PCS issue? I want to avoid any destructive action that could risk existing user data.
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0
542
Sep ’26
CloudKit Production sync fails with CKInternalErrorDomain 1011 and BAD_REQUEST on _pcs_data
Hi, I’m seeing a CloudKit Production sync failure in an iOS app using SwiftData/Core Data with private CloudKit mirroring. Sync worked correctly after release, then stopped working without any new app build being released. Device logs show: CKInternalErrorDomain Code=1011 and Core Data reports that CloudKit mirroring was never successfully initialized. CloudKit Production logs also show a native PRIVATE database request failing with: USER_ERROR / BAD_REQUEST involving the internal record type: _pcs_data The Production schema, private zone, and subscription are still present. I have not reset Production or deleted any zones/subscriptions. I have already filed a Feedback Assistant report with diagnostics. Has anyone seen this pattern before? Is there a safe developer-side remediation, or is this typically an Apple-side CloudKit/PCS issue? I want to avoid any destructive action that could risk existing user data.
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542
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Sep ’26