Can't Get My Bow Melded

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Date & Time: From around July 12th to now
Frequency: Constant
World name: Behemoth
Character name: Celeste Baratheon
Retainer name: Annalise & Ridin
NPC name: Materia Melder
Monster name:
Class/Level: Bard Lvl 80
Party or solo: Both
In-game time: All the time
Area and coordinates: Eulmore x:10.6 y:10.9

I am unable to meld my King's Longbow with any sort of materia. I bought Savage Aim VIIs from Thex in Eulmore at x:10.6 y:10.9 and had them melded by the materia melder right next to him. However, there is still no materia in the slots on my weapon even though the materia got used up and the bow doesn't show up under Main/Off Hand when I try to meld it. The materia isn't in any other weapon either, it's just gone and I'm unable to meld the bow anymore.

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