Nope that’s not it.
First of all the rendered image looks very different from the preview sphere. Second, the material works fine in other scenes. To show you what I mean, I created a new scene with the material applied to a cylinder. I rendered two scenes: one normal, and one with all but the first color texture layer hidden.
Here is the new scene rendered normally:

And here it is with only one layer in the color textures visible:

As you can see, the 1st image resembles the preview sphere and what the render should look like, and the 2nd image resembles the problem I am having rendering the other scene.