So, I finished three Zodiac weapons: Ragnarok, Longinus and Last Resort. I got rid of Ragnarok and Longinus to trade in for anima step, but still have the original Last Resort. Just now I went to purchase a replica of Longinus, and noticed Drake gave me the option for Ragnarok and Longinus, but not Last Resort.

If I take my Last Resort with me, he does give me the option to purchase its replicas. So... question is, if you don't get rid of the original weapon you have to take it with you, but if you do you can just purchase the replicas? Seems odd, and if that's not the case then I have something bugged here.

If someone knows would be helpful, cause if my replicas are bugged I should send a GM ticket or else I won't be able to purchase Last Resort replicas if I get rid of it.

Edit: finally asked a GM. It works this way so it's safe to discard it. It's a bit odd, though.