On start up uefn crashes and gives me an error

General Issues and Bug Reporting
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1

Fatal error: [File:D:\build++Fortnite\Sync\Engine\Source\Runtime\PakFile\Private\IPlatformFilePak.cpp] [Line: 5574] Corrupt pak index detected on pak file: …/…/…/FortniteGame/Content/Paks/pakchunkscb_ExtRefoptional-WindowsClient.pak

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

Desktop Screenshot 2023.09.18 - 18.20.44.52
Desktop Screenshot 2023.09.18 - 18.20.44.521920×1080 198 KB

2

Thank you for your report! Can you please re-post using the “New Issue” option on the Issues and Bug Reporting forums? Posts with this feature are connected directly into our development team so we can quickly get to them!
For more information, such as how to get the reference ID, please check out the article here: Using the Creative and UEFN Bug Reporting Form