Guild Wars 2

I have a few level 50 upgrade gems that say they can only be used on empty upgrade slots…but they DO NOT. i am level 50…about 3/4 of the way to level 51 and whenever i try to use a level 50 upgrade gem the item i am trying to attach it to turns red and will not let me attach it.

Any suggestions on how to fix this?

The level requirement refers to the item’s level requirement, not to your actual level. So a gem with required level >=50 can only be attached to an item with required level >=50.
I suppose this is easier (or more logical) than raising the item’s requirement once you put the gem in.

OHHHhhhhhhh !!!! Thank you Ferlonas. DUH ME!