Just reinstalled the mod, everything is working fine for me, if your still having problems it might be worth verifying your game files and reinstall the mod.
possibly, but i've only tried one helmet so far and they are a lot harder for me to do than a livery, i'll probably have a go but from what i've seen so far it might take a while, the quality i have seen of helmets here is amazing, i struggle to get a line to look straight
