This could be user error. When an enemy lands on my outposts in a black hole or Boson star, they can invade all the outposts in one turn. When I come to take them back, I have to occupy them one outpost per turn. Is there a way I can occupy all of them in the same turn?
That doesn't sound like a user error Khan, occupying one at a time is what I get as well when there are multiple outposts/colonies in a system I invade. I haven't experienced the other half of the problem, but I rarely have more than a single outpost in a system (colonies yes), and the AI can't get past my defenses at this stage... Without being certain, this sounds like an overlooked bug, Adam will be interested in this.
The intended behavior is to only allow one planetary assault per turn in a specific system. So, if a system has several rival outposts/colonies, only one can be taken in each turn. That said, the AI may be ignoring this rule. We'll check this. Thanks!