Assertion failed error after fix up redirectors in UE 5.3

Development Programming & Scripting
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I’m trying to move my physic material asset into another folder. After that I make a fix up command in the old directory, and the engine crashes with this error:

Assertion failed: LandscapeSubSystem [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Landscape\Private\LandscapeNaniteComponent.cpp] [Line: 151]

UnrealEditor_Landscape
UnrealEditor_Landscape
UnrealEditor_Landscape
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_Core
UnrealEditor_Engine
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_AssetTools
UnrealEditor_AssetTools
UnrealEditor_ContentBrowserAssetDataSource
UnrealEditor_ContentBrowserAssetDataSource
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
user32
user32
UnrealEditor_ApplicationCore
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

What could be the reason? From Landscape or Nanite tools?

1 Like
2

After analyzing the project, I found the cause of the crash - the Landscape component at a level in whose properties Nanite was enabled. After unchecking the box, I was able to move the assets to another folder and there were no more crashes.

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