Simply as it is it doesn´t run on the clients if i play multiple clients. It just run 1 time on the first client (on the server on my knowledge) i choosed standalone game and play as client. I also changed the level and the controller with the level change( choosed the game mode that involves the player controller).
maybe i did something wrong in the ini files. There i added a lot from a MultiplayerLobbyKit that i included to my project and made it steam playable