IN PROGRESS: Can't properly save a Smart Material

Every time I try to make a new Smart material it runs through it's script but gives me a default grey texture at the end of it.

Couple things to note in case you ask:

1. I ran both PS and Quixel in Admin mode.
2. I have installed the most recent patch.

What could I be doing wrong? Thanks for you help. And apologies if this has been asked before.