Hi, this is exactly the problem I am having! The tutorial I'm following along with is the 'Realistic Outdoor Environments' that David just made (part18 23:40). When I get to creating bushes and follow the same steps that Skalman did, Maya crashes when I try to plug the outvalue to the cutout_opacity.

I've attached my scene file if you want to have a look at it. It is done up to the stage just before where I have to plug the luminance into the shader.