Happened to me as well. LR comes out in a few months, so don't fret too much about it.
Free Step Dodge
Hazard
CommanderWiggles
I know. I technically didn't lose everything- the original system data file is in my Mom's hard drive. It's still a bit upsetting. :c
Hazard
Oh, well see? You're lucky 
This is why you always have backups.
This is why you always have backups.
CommanderWiggles
I just had to move it to see. It's pretty sad. :c
Hazard
Did it not move over?
CommanderWiggles
It moved over. I figured it was my system file that was corrupted. But now I have to start everything over. TT nTT
CommanderWiggles
The only thing that stayed was my title.
Hazard
All costume unlocks are gone?