I don’t know what is a limit of a material, but I’ve seen materials have a noodle soup ten times what you have.
When I get into that sort of pickle, what I do is test every stage of the material until the problem reveals itself. Do some control + shift + click from the very first node and go one by one as it builds up and you’ll get to the point where it all turns black and then you’ll know that’s where the problem lies somewhere and you start troubleshooting from there.
