I won a game as Advent playing against 4 Hard Ai and have been trying to get achievements since, at this point,  that is all there is to do in the game. Now, I wiped out the pirates and colonized their base.  Great. I should get the Pirate Baron achievement.  But no, it says I did not get it in the achievements list.  Why??  Is it because the game said I had attained "Victory" before I went for the Pirate Base?  I tried for other achievements like having all the Advent cap ships at the same time, but that didnt register either.  What is going on with the game?  Do I have to start a new game or go to an earlier pre-Victory save game?  Has anyone encountered this before?