Put Locke and Gogo in a party. Equip Gogo with any kind of dirk, and Locke with every slot empty. Go to Locke's status screen, and then exit out so you're at the main menu. Now go to Gogo's status screen, and click on the slots below Mimic so that the Menu shows up. SwordTech and/or Runic should be dark, but if you click on them to select them, they will be white in the status screen. The most probable answer for what this happens is that it's loading Locke's weapon data, not Gogo's.
Submitted by: Thor