Today both my iPhone 5 and iPad Air 2 (iOS 8.4.1) with 1Password 5.5 installed are having the "Failed to fetch some record zones" issue with iCloud sync. I know that last time (Aug 27) this was an iCloud issue and resolved itself in time, but I thought I would check to see if others have the same problem.
1Password Version: 5.5
Extension Version: Not Provided
OS Version: iOS 8.4.1
Sync Type: iCloud