Whenever I try to load a session in UEFN it would fail most of the time. If I clicked on the “launch on this pc” button it would load up the easy anti cheat and it would give be an error before my PC Restarts. I have only had a few times where loading a session would work.
Thank you for your report! We would like to look into this further, would you be able to submit a bug report using the form available here? Fortnite Creative