I managed to fix it, there was an incompatibility with a Kopernicus asset that I had forgot to uninstall (not updated to 1.2.2). looking at the atmospheres now, I must say this mod mod is absolutely beautiful, thank you.
I'm having trouble with this mod. After install, this is a bright light shining when I try to look at the ground on Kerbin, I'm not sure if it's occurring on other planets. Anyone have a fix for this?