Unable to change custom follower body to UUNP special

[PegaluxX]

So far I've learned how to add/reduce breasts on outfits, remove underwear texture, replace broken limbs on outfit with custom nude body mesh successfully, using Outfit Studio.

 

But whenever i try to replace a custom followers body with UNP skin, taken from meshes folder in Bodyslide,  nothing changes except hands with broken seamline at wrists.

 

I've tried to replace all body parts with default bodyparts found in bodyslider folder too. Please help.

 

Thank you.

[Grey Cloud]

1 hour ago, PegaluxX said:

But whenever i try to replace a custom followers body with UNP skin,

Why do you need OS? Why not just move the textures from whatever skin you want to the corresponding texture folder for the follower?

[PegaluxX]

Today, after finishing setting required sliders in bodyslider, i clicked both options - build and batch build. I'm using UUNP special. 

 

Inside game, the bodies of followers were changed exactly according to slider setting but there is a neck seam showing different color between face and rest of the body, and a broken seam on both hands. How to fix them ?