LzJackson

I had a similar issue that could also only be fixed by changing the complexion. It was a lighting/neckseam problem for me but it might be worth a shot for your purple head issue. You could try and find an alternative head mesh to the one you've installed, some head meshes for some reason can't properly apply the complexion texture on load. It may be due to some mod incompatibility oversight somewhere, but in my case, I had to change the "Pretty Face" mod to something else to fix mine. Not sure if it would work for yours, but it may be a direction you can look into.