UEFN ERORRS

General Issues and Bug Reporting UEFN Validation
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got around 600 of these would appreiate help due to being unable to load project at all.

AssetCheck: Error: /Engine/Functions/Engine_MaterialFunctions02/Utility/BreakOutFloat2Components Failed to load referencer to validate it: Failed to copy package file to C:/Users/yooha/AppData/Local/UnrealEditorFortnite/Saved/M_Checkpoint_Activate_425: error code 1 /Game/Athena/Items/Traps/Checkpoint/M_Checkpoint_Activate
AssetCheck: Error: /Engine/Functions/Engine_MaterialFunctions02/Utility/BreakOutFloat2Components Failed to load referencer to validate it: Failed to copy package file to C:/Users/yooha/AppData/Local/UnrealEditorFortnite/Saved/M_CP_Device_Hologram_426: error code 1 /Game/Creative/Devices/Generic/Materials/M_CP_Device_Hologram
AssetCheck: Error: /Engine/Functions/Engine_MaterialFunctions02/Utility/BreakOutFloat2Components Failed to load referencer to validate it: Failed to copy package file to C:/Users/yooha/AppData/Local/UnrealEditorFortnite/Saved/M_FX_TriangleScroll_427: error code 1 /Game/UI/Foundation/Onboarding/Materials/M_FX_TriangleScroll

got around 600 of these would appreiate help due to being unable to load project at all.

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C:/Users/yooha/AppData/Local is still hidden and therefore cannot be written by apps
try starting opening epic games launcher as "run as Administrator " start UEFN possibly Windows 11 protection error C:/Users/yooha/AppData