UEFN crashes immediately on launch with new launcher

Summary

Tried to open UEFN with the new launcher and it immediately crashes.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

UI/Tools

Steps to Reproduce

New launcher.
In new launcher, customize top bar, navigation, choose developer.
Choose Projects tab in top bar.
Try to launch a project directly from the launcher before the editor is launched. “open in UEFN”

If that doesn’t work, then just try to go back and launch the editor itself first.
I have 42.40 from oct15.

Expected Result

launch UEFN and automatically open project.

Observed Result

crash

Fatal error: [File:Z:\UEVFS\Root\Engine\Source\Runtime\PakFile\Private\PakFile.cpp] [Line: 377]
Corrupt pak index detected on pak file: ../../../FortniteGame/Content/Paks/pakChunkEarly-WindowsClient.pak

UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_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

Platform(s)

PC

Island Code

3438-7987-6568

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Addendum: i was able to open it yesterday before the update.
I also hit the “verify files” check and it came out OK, and rebooted, but still crashes.

hi,

This is probably the same as this workaround that works for me. This version has loaded UEFN 42.40 on both my PC successfully

Unable to launch fortnite through UEFN after installing the new EGL or latest update - General / Issues and Bug Reporting - Epic Developer Community Forums

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