I bet you're extremely sad seeing this comment, however I saw another potential bug. I don't really know their names, but the ice monster that can teleport teleported into the wall. After a while he left but it made it really hard to shoot him.
Damn, I do think that is a bug. He keeps his shield as long as there is a minion alive, or a short time after spawning them, but the shield should go away after that. I will look into that as well. Thanks for letting me know! ^^
