Invasion

That's strange, the folder is clean, I removed all mods (except for the battle save), but here's the problem - the dungeon lord doesn't appear in battle. Is it a bug?

Added 9 minutes later
I reinstalled, started a new game, and it's still the same. It's strange, after all, you're a Master?

I checked what you uploaded today - everything is fine there.

Are there no fireballs at the beginning of the battle? Was the old map deleted? Is there only one map with that name in the list? Does the dungeon lord not appear in the very first battle?

Added 7 minutes later
Is the game version original or are there mods like EWA?