Unable to add Spec maps

[Rosetta-Hime]

I followed this tutorial: http://forums.kc-mm.com/index.php?topic=58558.0 to try and add a Spec map to Luma. I get to the very last step, which is set the TextureMartix to True, but it keeps jumping back to false. So the Specs don't work in-game. Any idea why it does that? Or can someone that can actually do it do that one step for me?

[Gamma Ridley]

Is Luma rigged to only one bone? If so, you won't need to add a texture matrix.