PLEASE NOTE: I'm no longer using this mod in the collection, due to conflicts with the other races/creatures.
This solution still works. It is tedious to do before you can play though.

Certain races depending on vanilla graphics - such as Dwarves, Goblins and some Elves - will require you to add a file to Creature Graphics Extended, for example, adding the Runic Dwarves. This should fix missing body part textures.
1) Copy the graphics_creature_dwarf_layered.txt file
2) Paste the copy and rename it to graphics_creature_runic_dwarf_layered.txt
3) Change the first line in the file to graphics_creature_runic_dwarf_layered
4) Copy from the modded race in object folder, creature file this line: [CREATURE:RUNIC_DWARF]
5) Change the [CREATURE_GRAPHICS:DWARF] to [CREATURE_GRAPHICS:RUNIC_DWARF]