Devastated City Glitch

So this happened during around wave 21. One of those big guys who drop from the planes got stuck in the wall. We could not see or kill him, and it ended the game early.

We had no idea how this happened, but I believe it had something to do with kicking him in that direction.

The enemy is right in front of me, but I cannot see him at all to kill him and end the round.

I'd appreciate if this was fixed in an incoming update, thanks in advance.

EDIT: Sorry about the massive screenshot, best I could get because it was rushed, leaving for the city in a few mins.