Describe the bug
Sometimes, users see “iCloud Required”, even though they have iCloud account active and iCloud Drive enabled in their device.
To reproduce
Happens randomly from time to time. No specific pattern.
Expected behavior
Should not show the message. App should just work.
Observed behavior
You see this.

The CKAccountStatus: available says that you actually have the account working correctly.
Any other info
Workaround: force killing and restarting the app may fix it.