So I'm trying to automate my gem polishing and I can't seem to get the Crafting Combinator to set any of the gem recipes. I have a circuit that will output the next highest tier once the current one is finished, but when I fed it into the combinator it just stayed at empty, so I tried a constant combinator as the input just to see if it was my circuit, no dice. So I tried other recipes, and they work fine. Basic Belt, yup, all of the inserters that I have unlocked, yup, Cut Rubies, nope. It's kinda annoying because at this point they are the most complex thing I have going on in one crafting chain right now.