On here i have only read answers people have put out there for when your joining a server online without having the same version, but I'm having this exact problem trying to set up my own multiplayer map through Lan. What happens is i'll set it up through the editor, then when i go to join into the map i edited through the multiplayer/ host/ scenerio it starts this exact same page or something simular without loading http://imgur.com/a/blBof