Does Find Sessions not work with Null as the Online PlatforM?

I tried that, and when I create session it says it makes the session okay after I create it, having the message for it hooked up to print string. But, when others try to find it with Find Session nothing comes out. I tried doing LAN checked and not, I have the things hooked up in plugins. I made sure that in the case there is any servers the buttons get attached correctly to my scroll list, using a dummy button that doesn’t work off a specific server but yet when there should be some nothing shows up for real. Any advice?