Fallen Knight

Although, of course, with such cheats, I quickly defeated him. But he summoned the final wave of demons after the death of his entire army.

The problem is probably not in the update or even in the script itself. The information is not 100% certain, but it is likely that both Antik and I had a corrupted script from another Campaign affecting our game profile during the first playthrough. Sometimes, simply deleting Campaigns is not enough to clear the residual game memory. You need to completely delete the saves. I clearly remember that I once had a Campaign with a similar bug. And, as you can see, the script successfully achieved victory this time, and the difference lies solely in the deleted saves.

So, with a 90% probability, the problem is now with Antik's game, not with the map. Saves can be just as dangerous as the map and Campaign files themselves in some cases. I am sure that many misunderstandings with players occur with the authors precisely because of saves, which almost no one takes into account or advises to delete. And this can be especially important if the map is also a mod.

Added 2 minutes later
But I must add a note of caution and say that Chaos doesn't really need these summons