The problem doesn't depend on the AI mod or the stones at the entrance.
Moreover, today, during testing, I discovered that this situation can occur with both Elves and Demons, with varying degrees of probability.
That is, sometimes the computer just sits in the city and skips turns, doing nothing. Sometimes it plays aggressively and rushes, and sometimes it just acts like this. It's different every time.
I don't know what causes this.
For example, today, the Elf and the Orc took turns acting like this.
Maybe it's partly because I don't move the hero around, but just open the map and skip turns to see how everyone will behave. Although this situation also occurred when I played very aggressively, so that's not the reason...
Anyway, I don't know.
In general, this isn't my problem, as I've done everything I can and checked everything on my side.
I doubt that I could have accidentally messed something up in the editor settings, unless the author did it before me, and if there's even anything to mess up there.
By the way, I'll release a large update for this map in its thread today or tomorrow.