Just had the weirdest freakin' bug. Had two worlds in the same system, both had had TL1 ruined outposts on them, same long-vanished race. Finished competely reclaiming the first and had a decent little colony established there. Had an engineer brigade on the 2nd, with a troop carrier stationed overhead to pull them out if things got hairy.
Sure enough, things got hairy. Robot soldiers pour out, so I immediately land the troopship, load up the engineer brigade, and get the hell out. All good so far. I plan to come back several months later with a full combat brigade to take care of the robots.
So, I land the troopship on the colony world nearby and unload the engineers, then head for Earth to refuel and pick up the combat brigade.
After the next 5-day turn, I'm *still* getting combat reports. Somehow the property of the NPR robot soldiers attacking them carried over even though they changed planets. And the colony only had a garrison battalion for defense. I manage to get the ship back to Earth and load up the brigade, but the colony falls before I can return.
But the weirdness doesn't stop there. I had a slew of civilian freighters and colony ships inbound, delivering mines and miners. When they got there, suddenly there's a new race appearing with four non-hostile vessels orbiting the planet and a small planetary population. WTF? The civvie colony ship landed anyways and founded a new colony and then the others dumped their mines there. The combat brigade arrives and drops more soldiers than there are colonists at this point.
Dumbfounded, I turn on designer mode and SM mode to see what happened. The race isn't even visible in *designer* mode.
I SM instant communication, and they identify themselves as Precursors. But the portrait and flag aren't remotely close to the "official" Precursors. And their base tolerances are matched perfectly to this planet. And those four ships? They turn out to be
four of my civilian ships (must have been on the planet when it fell to the robots). These show up as part of the "official" Precursor fleet in SM mode.
I am sooooooo confused. It's like the game created a splinter Precursor "faction" race out of my conquered colony. Which would not have happened if I had just left my engineer brigade to be torn apart on the uncolonized archaeology dig.