Just played a 2v2 match with the AI as Russians. We destroyed every building and killed every person but could not get one of the 2 AI enemies to be defeated. After searching the entire map (and even setting up watch towers that lit the entire area on Black Forrest map), no scouts or other units/buildings were found. The only thing noticed was that this enemy base had a destroyed High Trade House that was still producing deer. I think this was the glitch that caused my friend and I to forfeit the game and lose the victory.
Sorry you ran into this @McBanans! We’ll look into this. Appreciate the report!