I just downloaded this mod and it looks great! However I noticed that all the brass recipes were missing. All of the brass-based things in this mod do not have a recipe, and they all look like the image below. The andesite alloy recipes all work though, which made it more peculiar. I unzipped the mod jar file and changed some values in the recipe jsons to try and fix it, but none of those worked.

quick edit: the mod pictured is EMI

Try to see if the "c:ingots/brass" tag exists, this should be added by Create.

That tag is now c:brass_ingots, so it might be just a small change