ClientTravel not loading the correct map

I’m currently working on getting multiplayer using the Steam subsystem up and running. So far I’ve copied the functionality I need from the ShooterGame sample and I can host games. When I join the session with the client it doesn’t load the map the host is playing.

Looking at the logs for the host I see the entry:
[2015.06.04-20.54.06:464][260]LogGameMode: ProcessServerTravel: /Game/FirstPerson/Maps/FinalLevel?Game=/Game/FirstPerson/Blueprints/GameModes/FreeForAllGameMode.FreeForAllGameMode_C

and the client has the entry:
[2015.06.04-20.54.54:067][172]LogNet: Browse: steam.76561197960456926//Game/FirstPerson/Maps/MainMenu

Not sure why the map the client is supposed to load doesn’t look like it’s being sent across correctly. What am I missing to get this working?

After spending a while debugging I found my problem: I had forgotten to add ?listen to the end of my travel URL so my server was never listening for messages from my client. Adding that in fixed it for me.