How to fix iOS iCloud issue
For some reasons, iCloud Drive keeps the old data doesn’t let your device to save new data.
To fix this issue, Please follow these instructions below:
1. On your iPad, go to Settings => Search for “iCloud Drive” => Turn off iCloud Drive (Temporary, turn off iCloud Drive feature of the device).
2. Go back to the Home Screen => Launch Wings Of Duty => Go to Pilot Profiles => Tap on RestoreAccount button.
3. Go back to Settings => Turn on iCloud Driver again.
After these steps, the game should be able to save its data as before.