[Reikou]

I was equipping my skills and somehow ended with duplicates.

Might have been caused by spam dragging the skills during a minor lag spike, although I'm not too sure.

Edit: The skills stay even if you fight or relog, for the mean time I decided to leave it like that just in case.

[Neus]

Added a small (half second) delay for skill equip/unequip commands that might prevent this from happening, if a lag spike was the cause.