EXCEPTION_ACCESS_VIOLATION Error ever since update.

General Issues and Bug Reporting
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1

Summary

Every time i try and load UEFN, it crashes before even reaching ~40%. i cant load a project, so its not project specific. the entire launcher Is crashing and giving that error. i have tried verifying game files several times, deleting the UnrealEditorFortnite Folder, and more.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Steps to Reproduce

Launch UEFN, witness crash

Expected Result

Engine launches to project selection screen, allowing you to pick and load a project

Observed Result

Crash at 40% loading

Platform(s)

PC

2

hi @Hexagon37 ,
We all got this you need to verify your installation
how to verify UEFN/fortnite

On Windows 11 this needs to right-click Epic Games Launcher “Run as Administrator”
Then restart your PC

3

Hello,

Unfortunately, as stated previously, these steps have not resolved the issue and they have been attempted several times. To be sure, I tried your recommendations once more and it did not fix the crash this time either. it seems my issue is different to the one everyone else experienced, yet is still caused by the update

4

check your directory and delete content of
C:\Users%username%\AppData\Local\UnrealEditorFortnite\saved"."
C:\Users%username%\AppData\Local\UnrealEditorFortnite\Intermediate*."
these are temporary files.
try launching again
if not its an account problem
try launching Fortnite itself

5

Unfortunately these steps did not work either. Fortnite itself launches and runs fine, UEFN wont

6

hi @Hexagon37 ,
The only thing left is to check and repair the disk structure
Right-Click Windows Command Shell Select Run as Administrator

c:\> ChkDsk /f/r C:
Message asks if check disk on next restart type Y
Restart PC

The disk check will start in about 20 minutes and will probably pass error-free, then restart Windows.

Finally, there was a problem with certain graphics cards after an update and this thread solved the problem

Solved - How to fix Fatal Errors in UEFN related to Graphic Cards and Shaders and Derived Data problems

That nothing else can think of will fix this.

7

Unfortunately these steps didnt work either. I’m at a loss. I wish epic would stop breaking everything every update. It sounds like the actual editor is having even more issues once you manage to get into it as well. Thanks for the help to this point though!