UE 5.1 Crashing when open project "UnrealEditor_WorldPartitionEditor"

General Feedback & Requests
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1

Hello, i have a problem. I made a project using the third person template and edited it a little bit. After some hours meshes started to unload and beeing invisible in the scene. I couldnt do anything inside the world partition window ( i read i should select something there and load it back in, but didnt work). However, now after i want to open the project i get following crash:

Blockquote
Assertion failed: WorldPartition->World == World [File:D:\build++UE5\Sync\Engine\Source\Editor\WorldPartitionEditor\Private\WorldPartition\SWorldPartitionEditor.cpp] [Line: 73]
UnrealEditor_WorldPartitionEditor
UnrealEditor_WorldPartitionEditor
UnrealEditor_WorldPartitionEditor
UnrealEditor_WorldPartitionEditor
UnrealEditor_WorldPartitionEditor
UnrealEditor_WorldPartitionEditor
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_LevelEditor
UnrealEditor_LevelEditor
UnrealEditor_LevelEditor
UnrealEditor_LevelEditor
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_MainFrame
UnrealEditor_UnrealEd
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

hope someone can help me :confused:

2

I also got locked out of my project today because of this issue. Can’t open the project at all.

Out of desperation, I try to comment the offending line out but I cannot find the directory in drive D, editing the Source files in Program files still causes this effect

One thing I suspect causing this was that before the crash starts happening I moved the default ThirdPersonLevel to another folder. Then I can open the project a few more times (The viewport will be black on start-up until I open ThirdPersonLevel). Then the project is completedly locked out with this repeated crash

Any help would be appreciated

3

Did you solve the problem?

4

Remove/Change name of Defautengine.ini in the config folder, worked for me.