Hello,
In 4.6 the session nodes have been added. I am currently using the console execution command open to join games and I was wondering if this is the same as the new Join Session node? I ask because I am trying to implement the voice chat that is within the Shooter example. It mentions that the users need to be in the same session. I uploaded pictures of the nodes and sample info.
Sorry for the late response. As I just found out today, the answer to the question is simply no. If you use 'open ’ you will not be able to see the session on the connected client. This causes issues with voice chat as you say and should be avoided. Try creating your own host(create) session c++ implementation kind of like the one in the c++ shootergame. If you are on LAN using OnlinesubsystemNull you can set the settings to allow players to find your game and join sessions in the standard way.