Many of the recipes intended to be crafted in tier 2 assemblers, like cliff explosives, stack inserters, etc., do not let me craft them when I try to select the recipe in the assembler. It might be all the recipes that require oil. I set the complexity to gears and green circuits only, and minor technology cost decrease. I don't think it's a mod conflict since I am only also using Helmod and FNEI. Though I'm using expensive recipes and custom resource settings (basically railworld).

Great mod, until I wasn't able to get rid of my cliffs. :)

Tried to research tier 3 assemblers to see if I could craft things in it, but purple science cannot be made in an assembler so I can't unlock them. It did seem to specifically be an issue with recipes that required crude oil.