Altering a pre-made layer style in Ai?

Hello, all, looking for some guidance. I purchased some metal layer styles and they have an extrusion, like 3D. The extrusion is perfect, but I want it to be LESS. I don’t know where I’m going in Ai, but I clicked on 3D extrusion, changed it to 0, and Illustrator crashed. I have a high end PC designed for studio work and heavy gaming, so I’m very confused. Perhaps I simply used the wrong thing? I’m very confused with Ai, so any help is appreciated. If my post isn’t very clear, I apologise.