No dynamic lighting in the grifball court?

I haven’t gotten too much time on halo 4 yet, but I have played a little forge. While attempting to see how easy it would’ve been to once again recreate a map of mine I noticed that the dynamic lighting was not working in the grifball court. Has anyone else noticed this? Or was it maybe a one time deal?

Dynamic Lighting only works with the level’s 'Sun’and the ability to cast shadows from that. If you’re trying to build in the shade, then everything will already be dark. The griffball court is already dark, thus no shadowing effects. You can also go under the huge ledge there in Erosion and see the same thing. ‘Natural’ light must be able to reach the section you’re making your map in.