Found this figure at US retail two days ago. Mine also has this same issue. Please take note that this piece of plastic is very thin. I heated it up and attempted to straighten it out a bit and a bad stress mark immidately appeared across it. I am always very careful with my fixes and I used very little force before the mark was caused. It's also worth noting that removal of this piece allows Optimus to tilt his head several degrees downward in robot mode This figure is far from perfect but I like it a lot and it will hold me over until Takara's vastly superior version drops.