I researched Environmental Manufacturing in the Colonization Tree, and found a solo Basic Factory that was receiving the bonus - shown as Level 1 Total Manufacturing + 5% - even though there was no buildable hex adjacent (so no other factory, no Colony Capitol effect). I checked a save from just prior to receiving this tech and this factory/hex was not receiving the +5% bonus prior to researching the tech. So it looks as if *every* manufacturing facility is - incorrectly, according the the description of the tech - receiving a minimum +1 Level bonus, even when nothing is adjacent to it.
Clearly, this extra 5% on one factory is going to just totally throw off the balance in my current game... well OK, maybe it's not exactly an earth-shattering bug but figured I'd at least log it.
- jeff