I think this level is bugged. if you do as instructed something bugs out and even though you defeat all the ogres it acts like you didn’t and you fail. If I tell my unit to move down if there is not enemy then it works just fine. Could this please be acknowledged as a bug? The fact that the only change I made is merely moving down in between waves proves that there is something wrong with this level.
What is your code and gear? Because for me when I do as instructed, the level proceeds just fine.