Discrepancies in Galaxy Editor when loading up an "x3_universe.xml" file

[OatmealMu]

I'm trying to edit the backgrounds in Litcube's Universe. Texture swaps are easy enough. What I'm trying to do now is use the Galaxy Editor to edit the positions of the various planets and moons that inhabit each sector. I found and extracted "x3_universe.xml" from a vanilla Litcube install and placed it in the addons\maps directory. Then, I loaded up the file in the Galaxy Editor. Everything seemed to be working until I realized that the background was completely different versus what I was seeing in my Litcube save. More worryingly, the universe map looks all messed up. Did I miss a step along the way? I'd figured I could load up "x3_universe.xml" and get editing.

Thanks.