Skyrim clothing ingame mesh problem

[N.Gamma]

Hi as the headline says I have a problem with the mesh of a clothing item.

I made bodyslides for BHUNP and when I look at the meshs in Outfit Studio everything is ok, but ingame is not.

 

 

Front and back in Outfit Studio

Spoiler

  

 

In game pieces are missing in the skirt. (See pictures)

 

Front and back in game

Spoiler

 

Does anyone know what that's about?

[RomeoZero]

that's a render priority issue, mainly you forgot to adjust BsDismemberSkin data on those polygons and instead of rendering full 32 body slot body part (whole dress) it drops those unpainted polygons.Same as masking specific unused body parts in Bodyslide to not be visible in game.
The basic example is skyrim body that has 3 dismember slots:  body\forearms\calves. Except (32) body,  (34) arms and (38) calves skin instances are not rendered when being equipped by feet or gloves meshes.