For some outrageously stupid reason, there is a plane that I am modifying called the Scout Porter (link) which is currently 2x scaled. This shouldn't be making this plane lag more than the original at all, yet whenever you save it, play it, or anything to mini save it, the game crashes! Stupid eh? I've even made aeroplanes that are almost the same size as this plane with more than 30 more parts that run smoothly on my iPad no matter what you do to it. My iPad can run planes with a maximum of 300 parts and it's pretty meatballs that this can't even be runed.
This is quite a devastating bug that I want fixed RIGHT NOW!!!