So, just had this experience crafting a mobile generator on my base. it just wouldn't build the gluon beam. And i couldn't figure out why. Turns out it couldn't build a subcomponent, because it couldn't build a sub-sub component, because it couldn't build a blasting cap, because i didn't have enough Rodite. What we need is either a screen, block or interface thingy that tells us 'You are short on this resource.' Because currently, we are reduced to either counting res chunks, or force building sub components until we puzzle out what we are low on. Not fun.