EXCEPTION_ACCESS_VIOLATION ERROR ON UEFN STARTUP

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Summary

When I try to launch UEFN I get an error pop up. I cant even get into UEFN so I think its not a project specific issue.
I tried to:

  • Update my GPU game-ready/studio drivers.
  • Re-install UEFN/Fortnite/EpicGames Launcher
  • Re-install Windows 11
  • Tried to run UEFN as administrator
  • Reset my PC to factory settings

My PC specifications are:
Intel Core i7-14700KF Raptor Lake Refresh 5.6 GHz
NVIDIA GeForce RTX 4070 Ti SUPER 16GB
RAM 32GB DDR5
SSD 2000 GB

THE CRASH:
LoginId:82a7fcec4f95bfb2bb19a9abccc43e01
EpicAccountId:d74b3480d8c44789a7effdd04c3ea0f7

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000f386f3a8

UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
kernel32
ntdll

Steps to Reproduce

Open Epic Games launcher
Launch UEFN

Expected Result

To able to go to UEFN and work.

Observed Result

Platform(s)

PC - Windows 11

Island Code

Additional Notes

And when I was able to go into UEFN and load into any project, I was getting this error most of the time.
I dont have a full text of the error, but it said that my CPU is not stable.

Hi @Kurmay97 ,

There is a similar thread in Unreal Engine 5 (Standard) UEFN is built on this

Unreal Crashing a few seconds after launching - Development / Programming & Scripting - Epic Developer Community Forums (unrealengine.com)