And that is why my ponies friends we backup our game data using Itunes (IOS) or Helium (android)... Saving the trouble of contacting Gameloft Customer Care each time game experience glitches or rollback...
In any case i already receive a mail regarding a new update is underway to fix few devices or firmware that experiencing the rollback problem recently... hopefully it release as soon as possible since is very troublesome for me to backup game data every single time i finish collecting resources or achieve a new high score in the social event... leave it close for few minutes and it reset back to your major achievement in the game which force you to restore with backup again... as least you won't be losing any valuable effort or time invested in the game i ensure you