Either I'm not expressing my thoughts correctly, or you're not quite understanding me. A Fortress is a structure on the map where you can upgrade creatures for money. So, when any hero except a Dungeon hero enters the Fortress, everything works, and alternative upgrades from the mod appear. But when a Warlock enters the Fortress, the game crashes immediately. And that's not the biggest problem. The biggest problem is that the AI also enters the Fortress, and then the game crashes during its turn.
Does this happen on all maps, or is it only happening on a specific map?

---------------------------------------------
Неудачное планирование ведёт к неудаче ...
NCF - мод, добавляющий дополнительных существ в HeroesV 3.1