This is also happening to me. My devices will not sync even though I made sure to log in using my Facebook sign on with both devices. I have logged out and back on through Facebook with both but my level progress only shows on one device. Both are iPhones and both are updated with the game and IOS. Cost me quite a bit in…
Wish I knew what to do too. I didn't uninstall the game but tried everything else. My devices still are not syncing right. Kinda crazy too, it's just the levels.