I've seen a couple posts on the forums complaining about this, including one where apparently the issue was reported to be fixed, but I still can't select it on my Rufu's. I made the mistake of enhancing it before selecting the masterwork and now I can't select it either in the weapon details or at the enclave. I really don't want to have to go get another Rufu's Adept because I made a simple mistake with the one I got from Pantheon.