[Vynd]

I find it hard to believe that 1060 units would inflict absolutely no damage on a castle. Mindless units count 1/10th normal defending against a seige, I think, so Ermor would need to have something like 10,600 men in there to keep the walls repaired. I suspect that the AI would attack you if it had a force that large.

I could be wrong, but my impression is that the only troops that count for seiging a castle are those that have their orders set to Seige. Troops under a commander who is patroling or site searching or defending do not count. Maybe this is why wolfkinsov and others are running into problems.