Queen – “The King’s Sunset” [Campaign 1, Mission 5]

An absolutely poorly designed map.... At the end, a hero (your opponent) arrives with an army that is 10-20 times larger than yours (I think this has probably been mentioned before, if so, I apologize in advance for the repetition). After installing patch 1.6, I sent Godric to the end of the map, and this "monster" appeared and, after defeating Nicholas, happily ran towards my hero, and naturally, I lost... Then, after launching the autosave, immediately after the cutscene (where Nicholas dies), I approached this monster, and a message appeared saying that the mission was completed. I don't know if it's a bug or not))).
P.S. The difficulty level was the second to last (as far as I remember, "Veteran").