Cant see penises of some creatures

[allerius4]

Hello everyone, I got this common issue, the thing is I have it only on few specific creatures and I any of the recommended solutions didnt work for me. So long story shirt giants dont have penises, spiders neither, and some of the "insects" ( grasshopper...) dont have penises, also the Gargoyle has penis but its only flaccid. I will be talking about the giants because I care mostly about them, all the animations are working correctly with them, they just don't undress at the start of scene. Strangely enough the Lurker ( some blue underwater creature) works perfectly fine, he uses the same animations as Giants and Frost Giants, but only he has penis. I wanted to ask if I can somehow replace the vanilla .nif file with the naked one from MNC, I tried to find every giant .nif file I could and all of them have penises, I have no idea where I can find the vanilla one. I am not sure if replacing the vanilla model fucks some things up. Any help appreciated, thanks in advance.