My thesis woes

I do not think I ever explained what my thesis is about so here goes. the idea is to make a game engine that you compile once and then you get to change it as you please. Thus a normal user, who does not know any programming can change the game as he sees fit, without changing any code. the idea is great, if I say so myself but I have been having problems in the so many bugs that have popped up.

Somewhere, some code is being executed twice, which is making the objects show up twice. I want to get this thing fixed before I move on, but finding the wrong code is becoming problematic. oh well, back to work.