Okay, my game was running just fine last time I ran it and then compiled it into an exe a couple of weeks ago. The exe game works perfectly. And I haven't done anything with the asset project folder since then, nor I have logged into GameMaker at all since a I compiled it a couple weeks back. Today, I launched GameMaker 1.4 and tried to load into my game project to work on it and it all loads fine but when I hit the PLAY green arrow, it starts compiling and eventually comes up with an "Index was outside the bounds of the array" error. It gives me no more information than that, and running the debugger also comes up with the same window. My questions are WHY? Why is GameMaker suddenly not able to run my project when NOTHING HAS CHANGED and the last thing I did was compile an exe which runs perfectly with no errors? My second questions is WHY doesn't GameMaker give me more specific information so I can figure out and fix whatever is wrong? Whatever is wrong seems to be an issue CAUSED BY GAMEMAKER, not anything I did as I've already explained Third question... Is there someway I can fix this quickly rather than randomly pouring through my 15,000 lines of code in all my objects without a clue of how to fix this problem? Thanks!