Hello,
First, I want to say that I love this mod, me and my friends are spending our nights playing it and trying to survive longer each time! But yesterday, we ended up stuck : the server was saying that there were 12 monsters remaining, but we couldn't find them anyway near the spawn spot, and we ended up with a shrine at -145% HP at the end. We had to give up and restart on another map...
Now, what I want to suggest (and sorry if it already exists), would be a way to end the current wave but inputing a command on the server's console, killing all the mobs of the wave and therefore unblocking the situation.
Thank you,