PS and VTFedit: Could not complete your request because of a file-format module interference

So I’m nearly completing my model for grimlock, but vtfedit told me that it couldn’t import the bumpmap files. I check Photoshop for any problems, but it doesn’t open and I get this message: “could not complete your request because of a file-format module interference”
[DEL]
On top of that, the textures don’t load on the model when viewed on the model viewer.[/DEL]

Edit: It seems like this only affects the bump maps, as I was able to get all of the diffuse textures to work for the models.

http://i.imgur.com/NQuWSLl.png[/T]
[T]http://i.imgur.com/DgXKVOe.png