Okay, so I did the same steps I did in making the Bengalaas biuldable, and everything pretty much works fine, so I moved onward to the next unit, the Scantid. Now, when I try to biuld the Scantid, it tells me that I don't have enough Vespene Gas... Even though I made sure that the unit costs 0 vespene gas...
What's going on here?