brittle vapor
when you use the free crafting, it puts it in the queue, but also in inventory, so you have to remove from queue each time, if it goes in to inventory the item may not work if its a machine for instance as it just floats in the air when you drop it (as you cant do anything other than drop it) my work around is to recycle the floating items and manual build, but it seems a bit messy.
Unlimited inventory does not work, I fill up quick and end up very slow walking.