Apple seems to be responding to developers’ reports regarding issues with iCloud.
However, it is still important to monitor system status for current outstanding iCloud issues.
Apple Support: System Status
- Apple Fixed iCloud Bug Causing Syncing Issues for Third-Party Apps
- Apple’s iCloud Service Experiencing Outage
Developer:Re-check iCloud API stability. Report errors via Feedback Assistant, if needed.
QA engineer:Re-check iCloud API stability. Report errors via Feedback Assistant, if needed.
PM/DM:Business as usual.