I noticed when they started to use what is now the old 3D Studio (Green Screen) that the video quality was not the best. The color saturation was low, lighting was dark and who ever was standing on the left side had a blue light reflection on them which you can see in the last photo below.
During the construction the last two weeks it looked like they were using the old 3D Studio with the camera zoomed in for the map segments.
Since they switched to the new green screen the lighting and color is much better.
Attached are stills of the new green screen area, still of the new green screen in use and the old green screen.