Can you post a pic of your shading network ? I think you have a few things directly connected to your ramp instead of applying the out put of the ramp to a material then applying the material to your model . could be the issue . but with out a bit more info its hard to pin point . the computer im using has no program on it that allows pasting from the clipboard so i cant give you a screenshot but what i've done is like this, say lambert shader has a texture plug in its colour and the texture has 10 repeat uv with filter set to off in the file node