Errors in Built and Continuous Game, Scene works fine

I'm having some odd issues after switching to Unity 4 with a project. Everything works, supposedly (that is, there's not errors). But something is (obviously) going a bit haywire.

I am using ZigFu to build a kinect game. In my actual game scene everything works just fine if I play within the editor--like, everything. But if I build the game or run it from the pre-game scenes (menus, etc.) it doesn't work; specifically the motion tracking in ZigFu.

If I build just the single scene, it still works as well. I've looked at my objects that carry through from the pre-game scenes into the game (settings, etc.) and nothing is out of the ordinary. The problem must either lie with those, which I will keep debugging, or with Unity and maybe ZigFu (though again, everything with that seems to work...). Was wondering if anyone had any similar experiences and had any suggestions. I really don't know where to look. There's no errors or warnings being thrown about, which is heinously confusing. Every script seems to be working dandy, including the ones responsible for moving my character (this is what is specifically breaking), they just, well, aren't moving my objects