Unable to launch fortnite through UEFN after installing the new EGL or latest update

General Issues and Bug Reporting
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1

Summary

I am unable to launch a session/fortnite directly through uefn anymore since the new EGL was installed and the latest fortnite update (42.40)
i am unsure wether its the Epic Games Launcher, or the latest Fortnite update but im leaning more towards the Epic Games Launcher being the cause

If i launch fortnite normally and launch a session with fortnite already launched it works fine and without issues.

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

Most likely install the new EGL
Launch uefn
Open a project
Launcha session

Expected Result

It should launch normally without issues

Observed Result

It gives a error on fortnite giving a pak error but not specifies which pak is problematic

Platform(s)

PC

Upload an image

afbeelding_2026-10-16_123351599.png
afbeelding_2026-10-16_123351599.png2556×1440 415 KB

Additional Notes

I am not the only one experiencing this as i have seen other people experience the same issue

2

hi @FierceDeityYT ,

The version on the Epic Games Store appears to be an old version.

  1. Go into search engine Bing.com and
  2. type “Microsoft Store Epic Games Launcher”
  3. Click on the link in Microsoft Store Epic Games Launcher
  4. NOT the Epic games Launcher Below

Screenshot (2)
Screenshot (2)1083×513 46.9 KB

  1. You will then see the Microsoft Store Download page and click the link.

Screenshot (1)
Screenshot (1)1351×711 129 KB

  1. Looks like a regression has taken place
  2. First you must uninstall the old version with Windows Uninstall
  3. Restart your PC
  4. Go into search engine Bing.com and
  5. type “Microsoft Store Epic Games Launcher”
  6. Click on the link in Microsoft Store Epic Games Launcher
  7. NOT the Epic games Launcher Below that link
  8. Double click the Downloaded Microsoft Store Epic Games Launcher
  9. Agree to the install prompt and wait for the download to complete (< 5 minutes)
  10. This copy of launcher will ask for you username/password
  11. then will send you a verification code to enter
  12. The familiar display will open and you can download Fortnite updates.
  13. DO NOT BE TEMPTED to ALLOW updates to launcher for about 2 weeks until Epic fix the problems

@Flak Please alert Epic Support about this problem as the “Get Fortnite” icon link (top right) is broken as well

4

voted. reported the same thing

5

Replying here again instead of my thread since there’s a ticket for this one.
I was able to get UEFN to launch by doing the following.
The new launcher tried to delete the old launcher but failed, and I never went out of my way to fix it, so this worked

  1. start menu / epic launcher (the white icon) / uninstall
  2. after new launcher was uninstalled, launch old launcher
  3. validate / fix fn/uefn install
  4. wait like four hours on internet as bad as mine
  5. launch uefn.

So, just another data point.

6

The status of FORT-1175043 changed to ‘Needs Triage’. We are routing this to the appropriate team for investigation.