Title gives away the gist. Two PC players and a Mac player attempt to start a game. The host (regardless who it is) just sorta times out and nothing happens. When we bounce the Mac player we're able to party. Unfortunately we do actually want to play with the Mac user, so are there any possible solutions? Has anyone else experienced this issue?

Thanks!

e: added info; we've attempted to start from a lobby that everyone joins individually. We've also attempted to invite directly from GOG galaxy into the lobby. All three players have individually attempted to host with the same problem.