Thanks MENTOR for reporting this issue. I added a ticket for it, will try to reproduce and fix for the next release. Really sorry, you didn't make it to bonus round man! That really sucks.
Hey! I tried to reproduce the issue. Here, if I kill the horseman with goblins still around, the game doesn't complete. But as soon as I kill the last goblin / or the last goblin hits my base the game completes. I think this is the expected behavior. Did your game complete once all goblins were gone? Or did I oversee something? Thanks for your help!