Update lost my data!

I love this game, the whole idea behind it, and the fact that you can use your own songs is great, but the update made me start from scratch? Is there any way to fix this? I was already on the 5th mission set with 12 or so songs, and Im really disappointed to start over. :( Deserves a 5 star but only 3 stars given due to data loss.

Rock N Rollercoaster about Record Run