ServerTravel() Function Working in Editor But Not in Packaged Project When i Create Game Session it Jumps Back To The Same Level

The ServerTravel Function as it is Working in Editor Window i Play The Game And Pressing 1 Key To Create a Game Session And The Player Jumps into The Selected Level From a Default Startup Map But When i Package The Project And Play The Game The Player Did Not Jumps into The Selected Level But Jumps in The Default Level !