Hi,
I’m completely stuck with a very strange CloudKit problem that started recently and has now killed all iCloud sync for a live production app.
What is happening
- Production container: iCloud.gainzCloud (created ~11 months ago, has been working perfectly until now)
- In Xcode 26.0 (17A321):
→ Signing & Capabilities → iCloud is enabled
→ Container correctly shows as iCloud.gainzCloud
→ App builds and runs on device/simulator with zero provisioning or container errors - CloudKit Dashboard (https://icloud.developer.apple.com/dashboard/): completely blank – “No containers found”
- Result: CloudKit sync is dead for every user (development + production environments)
What I know for sure
- Apple Developer Support confirmed the container iCloud.gainzCloud still exists and is correctly attached to my Team ID on their backend
- Personal iCloud (Mail, Notes, Photos, etc.) syncs perfectly on the same Mac / same Apple ID under macOS Tahoe 26.1
- I have NOT changed the password on either the Apple ID or the Developer Program account
- New containers I create appear in Xcode but never show up in the Dashboard
Environment
- macOS Tahoe 26.1 (latest)
- Xcode Version 26.0 (17A321)
Has anyone on the new Tahoe/Xcode 26 releases seen the CloudKit Dashboard suddenly go completely empty while Xcode still “sees” the container just fine?
Any known trick to force the dashboard to re-index containers or clear whatever cache is broken?
Thanks a lot in advance – this is blocking all iCloud functionality for a released app with active users.