Unable to equip my black mage gear.

I was trying to switch from a weaver to my black mage. It is letting me switch the weapon and all my spells change to the black mage spells, but in the character screen it still says weaver and will not let me equip any of the black mage gear. It simply says it is not for my class. I switched to other classes and it was fine. It let me switch to archer, goldsmith, back to weaver, but never to black mage.

Did you equip your job stone?

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*Screenshot of your character window as the problem occurs