Find Sessions get failure or don't find the session

Hi, I’m creating a mp game using the sessions system, with the Steam Subsystem, and when I try to create the session, everything works perfectly, but when I try to FIND SESSIONS, I get a imediatly failure or it never find the session that it’s created. Can anyone help me? It’s driving me nuts…
PS. I’ve trying to use the Advanced Sessions Plugin, and get the same error. plz help…

please, make screenshots :
your ini file and your blueprints