G2 - FX textures possibly not working

[DT85]

I've tried loading an FX texture I made, but it doesn't seem to work. I have the red channel for specular and the green channel for specular power. Filename has '_fx.dds' at the end and its put into the same directory as the normal map so everything looks to be set up properly from what I can tell.

As a test, I messed around with the 'PS_Diffuse.hlsl' shader and loaded specular from the normal map's alpha channel which worked, but it won't work using an FX texture.

I use an AMD graphics card btw, if this makes a difference.