This one is about Asset Library creations
I have a car where the brake lights are animated using a shader (it's a mix2color connecting 2 diferent textures. I want to animate the Factor to switch between one another)
I have added the car to my asset library and imported it to another scene as Linked. Then I've overriden it so I can animate it's armature, but all the materials and shader nodes are greyed out so I can't animate the brake lights.
What have I done wrong?