I just found that the Buzzard Armor in my game doesn't fly. I assume it's an issue with a mod, but none of the mod threads have noted this problem.
Looking through the game files, I'm not finding any issue with the jumpPack data string. Is there another way that the game denotes an armor as using flight?
Edit: Playing around with the game files, I've found that my X:CE files are what dictate the properties of the armor, and it doesn't seem to change the flight parameter.