I'm really sorry for anyone who went to play IncrediMarble today and discovered their save was missing! Unity's default save path changed unexpectedly (due to changes made for a separate build of the game) so you may think your old save is gone, but it's not!
This patch should load up the save file found in%userprofile%\\AppData\\LocalLow\\Fun First\\IncrediMarble
If you want to use the save file created during the previous update, simply grab the save file from%userprofile%\\AppData\\LocalLow\\Dave Kap\\IncrediMarble
Again, I apologize for this bug. If you have any further troubles, do not hesitate to e-mail [email protected] or post in the forums!