Charged cores can't be used in material upgrade mystic forge recipe since about 2 hrs ago

Edit: fixed it, but this is a glitch. I had to log out and log back in. It's working again now.

~~I am using:

200x Charged Core100x Pile of Crystalline Dust100x Bottle of Elonian Wine250x Mystic Crystal

It does not allow me to 'Forge' with this recipe, which is the correct recipe. The dust, wine and crystals all highlight in association, but exclude the charged core.

I was doing this exact recipe approximately 2 hours ago. It no longer works ????~~

Keep in mind, the Mystic Forge is finicky. Often, it will require changing the order of the items placed, or even using a different Mystic Forge.

Or, in your case, logging out and back in.