Mean Green Mutha missing files

explanoite2

I've installed the Mean Green Mutha plant monster (https://www.daz3d.com/mean-green-mutha) and, to my surprise, the sacks have no displacement or specular maps. I've installed through both the Install Manager and Daz Connect, and I have checked the file lists that came with the readme's: everything that is supposed to be installed has been installed. Yet when I try to apply one of the material/color options to the MGM Body, it tries and fails to find "MUTHASacks_S.jpg" and "MUTHASacks_DisR8.jpg,"  neither of which come with the product. Even the product web page only lists 4 files for the sacks (which is what is installed: 3 diffusion maps, one for each color theme, and a bump map) but it says the sacks include specularity and displacement maps.

It won't break my heart if this product does not actually have specularity or displacement maps for the sacks (which are mostly hidden by the leaves), but I'd like to be sure the error is in the material file's file listing, and my product isn't missing some files.