Issue description
Minor bug, but still ...


When you pay Unity, all purple waste bins disappear ... in all affected blue prints.
After that, they will not show up anymore. You have to reload a savegame to see it again.
At least Flare, small & large Smoke Stack are affected.
Expected behavior
I think we can agree, that never ever the (otherwise useful) purple waste bin may show up in a blueprint. As a blueprint can't have any production leftovers.
As a SW developer and tester I wonder what went wrong there ... esp. as the smoke stacks show the bin only on two recipes.
Reproduction steps
In the blueprint, I unset all recipes.
Game version
v0.4.12a
