hey ,
i don’t know what was wrong, but after some retry it worked.
But im pretty sure there is still something wrong, maybe by importing the assets i migrated, i migrated the problem with it also.
to just let you know, im describing it here Session found in PIE but not in packaged Game - Multiplayer & Networking - Epic Developer Community Forums
im pretty sure from my research in answerhub and forum, that there is something wrong for old projects converted to the latest version over time.
there are many people having similar problems.
thank you epic guys so much for your help and support