I just reactivate an iPhone 4 under iOS 7.1.2.
I installed 1Password, login into iCloud, and tried to sync my account.
However it says "Data Not Found". Which is pretty weird because the data is there and I have no issues with my others iDevices.
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: iOS 7.1.2
Sync Type: iCloud