Not that there aren't certainly concepts that wouldn't benefit by additional pops of color, I wasn't sure if this was just a side-effect of all the headset changes to come to theserver or what but a number of Tattoo colors alter the headsets.
Black tattoos on a human male give some headsets goth AF lips, etc.
I've noticed certain headsets that originally did not have lipstick now have lipstick/colourable lips in char gen, including the first 1 or 2 human heads. These are tied to tattoo colour 2.
This isn't a bug, it's by design of those heads. You can even see this during character creation, though if you're using /c headset next you need to pay more attention to this. Some of the selectable heads in the character creator have this feature too, so you can match your tattoos to lips and eye colour. If you want to have particular tattoos that don't effect lip/eye colour you just need to select one of the heads that doesn't have the lips/eye colour linked to tattoos. Fortunately there are a lot to choose from.