Originally Posted by
Dooz
Cleitus, did you happen to load a save before ending the turn when the AI dropped their 1-turn siege? I think they "forget" or otherwise readjust their moves after loading, you can see by passing a turn as normal (after playing through at least one end turn), then loading the save from previous turn right before ending it and seeing how they behave. Pretty often, it's a different move than what they had done without the loading.
That said, if this doesn't apply, I wonder if anyone experienced behavior like that before the AI changes or if it's truly a direct result of the update. I'm almost certain I've seen plenty of that exact sort of thing over the years (AI breaking sieges) but I couldn't remember a specific definite example to be satisfied that it's true myself. But I'm like... pretty sure. Idunno.
Plus maybe they had a reason to reposition the army? Did you happen to see where it headed off towards in that different continent? Any enemy threats or other potential reasons for breaking siege and moving there (a new or ongoing war on that front, incoming enemies there, etc)? So much of this stuff is guesswork on our part, based on observations and assumptions and projection and who knows what else, often with incomplete information. It's hard to know what happens and why a lot of the time, and everyone has theories. Who knows. Hopefully some way to get the same good progression results and army positioning/use (far as taking into account relative strength and stuff is concerned) can be figured out with less drastic swings at some point.