Split Screen

I was hoping that splitscreen was going to be full screen, I know it’s to preserve the aspect ratio, but why are some things full and some have the Black bars still on the side. Disappointed, but I’m sure someone can give me a reasonable response

I imagine the black bars are produced as a result of some sort of graphical hiccup, if you catch my drift. The difference in object sizes is, as you mentioned, due solely to the preservation of the aspect ratio.