I think this happened in a game with WLDSPIRIT where I was the host and was bought out (after an EXTREMELY poor showing). It happened in a different game to me as well, not as the host.
We think the issue is that hosts are killing their processes, which halts the game for everyone else. (We removed the EXIT button for hosts of active games, but - since we aren't explaining it - people are probably just ALT-F4'ing). Your comment is the only one I've seen that suggests the game is freezing even if the host doesn't quit. Can you confirm that you didn't exit out of the game?
Host migration is on our priority list, btw.