Thanks, this looks very similar to what I’m seeing.
No real update yet on DTS case 21678909 / FB24394907. Apple also had me test with a brand-new container. On that one, both a normal Private Database write and custom-zone creation fail with HTTP 500 / CKError 15, while CloudKit Console still works.
My underlying error is 2000 rather than 2001. If you get a Feedback or support case number, please post it here and I’ll reference it in my DTS case.
Topic:
App & System Services
SubTopic:
iCloud
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