The Org Buglist v2

[Oaty]

[b]
The game can get stuck in a loop, apparentally when both the faction leader and heir are killed in the same battle.

I can confirm, But I do believe there is a bit more to it than that. If you kill them both in battle I don't think it loops. It's when you capture one or both then ransom them and due to the ransom being refused they get executed, but the engine detects them as being alive somehow. I'm pretty sure this is what causes the loop.

Edit: forgot to add AI won't sally out of forts, One town militia starved out a full stack of Mongols