[4.7]My Main menu map loads again when I load game world map, causing two worlds overlapping and overlapping HUDs

So I got a separate world with my main menu in it, and from there I have MainMenuHUD that allow me to start the game and load the game world. When I load the game world somehow my Main menu map also loads with it, and with the main menu hud overlapping the game hud. I cannot for the life of me figure out why this does happen. I´ve got nothing on Event begin play on my game world, no matinees, no nothing.

Got no idea what to do. A different gamemode shouldn´t load a level. As I got a custom gamemode for my mainmennu to not have a pawn spawn.

Can show more screenshots if you want.

Same issue, not sure if this has been fixed or if I’m just doing it wrong