Unable to create multiplayer session (Steam) (UE5)

Hey all, I’m having an issue creating an online session for steam in unreal.

It works perfectly in a play in editor window, but when I run standalone the game loads fine, Steam is connected and the overlay works, but when I create a lobby the server creation fails. (Creates and loads the next level in PIE).

When I load into my “lobby” directly on a standalone game, it does pickup my steam name, just does not want to host a session.

I have added all the .dlls, and followed several tutorials.

I have subsystem and plugins installed.

Thank you.