Came back to the game after not playing for a while and I've noticed that some AI teams expand to 1-2 planets and then just sit there idle for the entire game.

Was playing a FFA with 4 teams of 1 and about 30 minutes in I notice the Vasari team is just sitting there with their home planet and some asteroids surrounded by a bunch of unclaimed planets. No ships, not being attacked, not scouting, not building... just idle. They weren't defeated and I was allied with them so they were actively giving me missions.

I thought it may be because of the custom galaxyforge map but it was happening on pre-made maps as well. So then I tried a FFA with 3 teams of 1, same thing. One AI was acting normal but the other was just sitting idle with 2 or 3 planets. Then I tried a 1v1 and the AI wasn't having any problems, all of these tests were using different maps and races.

So, is my game broken or what? I'm using the latest patch as far as I know but that really shouldn't matter seeing as how it wasn't doing this before while using the same patch. I'm really not sure what changed/caused this.