Renderotica

My guess would be the issue is a two fold problem. 

First when grafts are added to a figure and shells are applied the shells pick up all the surfaces on the figure and grafts, in most cases the additional surfaces are turned off automatically but not usually with graft surfaces, so you get the white shell issue due to the additional surfaces being active, this part is usually pretty easy to fix by running one of Meipe's shell fix scripts while the shells are selected.

Second issue here would deal with the Ultimate Skin Moisture system itself, namely until it is updated it will lack the ability of the script for the shell to apply to Fender Blender automatically, so if you use the system with Fender Blender you would have to manually add the shader for the Fender Blender surfaces on the Ultimate Moisture Shell. To do this select the USM Shell in the Scene tab, now go to surfaces tab, look for the fender blender surface (It will differ depending on which version of the Fender Blender you use but it should start with Fender Blender) select it, and apply the Daz Uber Iray shader to it (It will be set to Daz Default), now go to the Torso surface of the USM shell, right click and choose copy selected surface(s), now return to and select the fender blender surface in the USM shell again, right click and choose paste to selected surface(s). USM should now be covering the added Fender Blender surface as well. Sadly you will have to repeat the copy/paste settings every time you change presets but it will at least let you use Fender Blender with USM.

Edited by user Friday, November 13, 2020 4:44:38 PM(UTC)  | Reason: Not specified

Sorry for the delayed response :)

For now, the method described above works, just apply the ireay uber shader to the "fender blender" area on the USM shell, and right click copy/paste the torso area to the fender blender area.

I've been working on an update for all 8 packages that will also enhance the default shaders on the moisture, it's just taking more time than I had planned. :)