Hey everyone! I've got a friend trying to join a multiplayer session - to preface, everyone has the same modlist and settings, everything works properly in single player - and he keeps getting a nondescript error. Whenever he tries to join our game via the Steam app, he gets redirected to a black Steam browser page with the address "about:blank#blocked". I've looked all over the internet and haven't found a solid solution. Any help or guidance is appreciated!