I just bought my new Battle Blade Optimus Prime today. I opened it 15 minutes ago, I opened the chest to look at the matrix, but doing it I pop of the doors. I attached to right one on easily, but the left one won't snap back on. I pushed it hard, but now I've got lots of cut on my figures doing it, so I just wanted to throw it on the ground and smash it until it goes back in. What do I do? Does anyone have the same problem?