Edit - doesn't work with a GPU either. what did you change from JLP's version?
By the things that he share here in the forum and github it isn't a single line or some of them, i think he rewrite a lot of code and added new code to it.
If he don't share it I doubt you can replicate it.
I think the issue is that we need to overwrite the key in the workfile, working on a script to do it now...