Bad MeshDescription On NaniteLandscapeMesh

Development World Creation
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1

I have a very serious problem in my UE5.2.1 project. I need to create a game for my project and I am already 3/4 the way done into the project. There is no turning back and restarting now.

I am getting this error:

LoginId:f5e350c44aac0665b508ef82a613a5e2
EpicAccountId:5ec8b1833ad54d29be2feda7832d6ffc

Assertion failed: Owner->IsMeshDescriptionValid(0) [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\StaticMesh.cpp] [Line: 3048] Bad MeshDescription on /Game/Scenes/WhiteBoxing.LandscapeNaniteMesh

UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
kernel32
ntdll

I cannot find anywhere else where they have fixed this. I cannot open my project at all and I cannot edit anything in the content browser (obviously) All I can do is change the .UMAP project using notepad and also changing the .UPROJECT file using notepad too.

2

False alarm. I figured out how to fix this (at least for me) All I did was create and open up another new project. I then renamed the map in this new temporary project to the name of my autolaunch map in my original project. I then saved the original map somewhere else (just incase I can get it working somehow) and migrated this newly created map to where the original map was. I then launched up my project and it was ok!