Guild Wars 2

First of all, I there are 2 grass dyes on TP. One of them I’ve unlocked and the other I haven’t(weird as they’re the same). The one that I got from a drop, after activating it does not show on my dye list. Please look into this.

I’m not sure if this is related but I have received 2 drops of ‘Grass Dye’ but when I unlocked the first one it unlocked the “Envy Dye.” I now have the second “Grass Dye” and I am unable to unlock it as I already have the color unlocked.