I checked that a few days ago, never had this issue before 36.10 but figured it might be that but I have every UE related anything excluded from firewall
usually starts with a red error screen after trying to load a play session then login issues start, sometimes before that though, it is very random too, it doesn’t happen every time but its at least 50% either a login issue or a error on loading a play session, nothing really fixes it other than waiting a while and a task bar exit, but i have also noticed that since the last patch the task bar aligns fortnite differently now, a lot more things seem attached to the epic games launcher now so i am assuming this is a epic games launcher login issue because of some recent changes more than anything
if not login issues it’s dx12 issues or revision control issues or fn.exe login issues or apparently lack of virtual memory issues causing errors or anti cheat etc etc
its a epic issue and so were kinda screwed till after summer i guess