When I call seamless travel by using execute console command it does nothing. I have enabled seamless travel in the game mode and have set a transition map but still not working. I can see that the execute node is working because when I play in PIE it gives a warning in the output log since you cant use server travel in PIE.
It works… …will need more information to identify the issue you are experiencing.
I claim seemless, or not, travel is called the same way with exception to the “Use Seemless Travel” boolean being set, or not.
IMO, the non-trivial part is correctly handling the players joined game level you are travelling to.
At a high level I have two events: EventOnPostLogin for non-seamless travels and EventHandleStartingNewPlayer.