i

Just to be super clear:

You're doing it on stage 4, sewers of Arnoc, normal difficulty?

i

i

And the gauntlets are Attack %, not just Attack ?

(note the different in the pictures; top image is Atk %)

(edit: I don't have any flat attack gauntlets in my inventory to take a screenshot of, so I subbed in that chestplate instead for the sake of example)