Haven – "Everything is mixed up, truth and falsehood" [Campaign 3 – Mission 2]

I probably have the most idiotic question. I've already "killed everyone, only one remains." But in "Quests," the active objective is "Eliminate George." And the mission doesn't end. Although I've beaten that George, and I remember doing it more than once. What should I do? Where should I look for him – there isn't a single hero on the map, neither above nor below ground.

P.S. I found the hidden house, captured the necromantic castle underground – George wasn't there.

Added after 15 hours and 34 minutes
Hello, is anyone alive?