I am hoping ATP was able to come up with a solution for the no-save dilemma. I have Crazy Machines 2 installed through the same mechanism (Impulse) for my son, but he cannot save any progress. He is becoming very good at completing previous levels so he can eventually get to new challenges, but I can tell that it is starting to wear on his seven-year-old patience.
I have seen other solutions to be as simple as reinstallling the game, but none thus far have proven to be a fix.
Windows 7 64-bit running Impulse service. The game runs otherwise correctly, but will not save information between plays of the game and will crash if one tries to load a player lab (that should have previously saved).