Don't know what happened... but since I played through the actual campaign, turned off mods (cuz metaverse said I needed to), and then started playing random maps again... the NPCs just don't make combat ships.
I am about 200 turns into this game and the Drath have not even COLONIZED a planet? They are surrounded by usable planets, but they have yet to make an actual ship.
I am playing on Painful, so I don't think its an AI thing... though I DID check that new box that lets the AI use CPU intensive stuff... somehow I think something is broken. This is WAY too easy, unless Painful just became the new Cakewalk.