Creating a Sequenced Assembly for Create Mod

I've been trying to create a sequenced assembly for Create using a few of my own mod's items. What I want to happen is: Put iron sheet on belt > Deploy gunpowder > Deploy iron nugget > Press. I'm Modrinth to load Create, JEI, and my mod and everything loads in properly, but the recipe doesn't show on JEI and nothing happens when the iron sheet reaches the first deployer. I can provide the code if need be.