When you guys altered this adventure, you messed up the dragon. He doesn't draw any cards other than the single movement card he gets every turn.
The update changed it so there's no monster at all in the final level. And with no monster, there's no win condition to satisfy so you can't complete it anymore.
I know that I hit a bug when I didn't see the dragon, but deep in my heart was the hope of his awsome entrance when I approached the pile of gold! (hey that is a cool feature! big entrances in boss fights) anyway got stuck and have to quit
With the berserkers when there where no enemies around killing one of your teammates triggered the win worth a shot
lol.. I tried this by standing on a Hot Spot for several turns. It certainly works but I'd rather fight the dragon.
I just wanted to give you guys a workaround until its fixed its definitely more fun to fight a dragon.