I am playing 5.3 and in the last games i noticed the barbarians being unusually passive, not wanting to cause trouble. Just hanging out at their forts, no incursions, no pillaging, no trying to take cities.
For example Orthus spawned right next to my southern border once, but instead of wrecking my poorly defended city, he just hung out in a goblin fort for the rest of the game. Left him there as i didnt even want his Axe because of the XP malus.
Or the regular fort inhabitants, they were not respawning when i killed one. Before when there were three units in a fort and i killed one they would respawn at a rate of one per turn. But nowadays they dont.
What is up with them?