There's nothing weird or funny. You just have a crappy camera solve that has resulted in a lens with an extreme zoom factor at very tiny scen scale. That's what happens when you use game footage that in itself is inconsistent. Likewise, because you have that awful camera you reach the limits of OpenGL clipping precision within E3D, though one can't rule out geometric issues with non-convex shapes of course. Either way, unless you find a better way to do your 3D track, none of that will improve.