hmmm... alright, it just occurred to me that I may've been mistaken when I said that it's shown up after a clean install.
Since the rebuild doesn't get installed/uninstalled via the normal method, what all besides (besides the main folder with the game and data, etc. and the folder in /mydocs ...

Since I'd intended to mod it, I installed directly to my C:, instead of into the Programs folder (which mucks up things with NexusModManager).

This is for Fallout New Vegas, not FO3.
Google is the first place I went for a solution, but I couldn't find anything.
Hell, I'm not even really sure what search terms I should use.
I tried searching "Fallout Vegas Ultimate Bald Bug" previously

All the female characters in the game seem to have bald spots with the eyebrows either missing or mis-placed upon the head of the model. This happens even with a clean install and is shown in the image below.
Help, please!