I have everything I need to make a Filler, and in the correct places, but it won't allow me to craft it. When I click on the recipe (on the right in the screenshot) it has the exact same thing, I'm not sure where I'm going wrong!
I am on a multiplayer server (with one other friend) using the Direwolf20 ModPack from Feed the Beast. My computer is a mac. The recipe has been checked and it is the right one.