It looks like this mod adds argon to BZ Carbon's fullerene recipe (it is the last mod to touch the recipe in my mod collection). However fullerenes already require nitrogen, and because the recipe type is "crafting-with-fluid", this means the only machine capable of making them is the SE Space Manufactory. This feels like a bug, in that it dramatically complicates the progression and makes fullerenes effectively gated behind space science when they should be gated behind chemical science . I would suggest either removing the argon or changing the recipe category to "chemistry" to avoid this.