Blender 2.92 FBX exporter does something wrong with Lights that Unreal then can't import and crashes #90453

New Issue

Adam Preisler · 2021-08-05T12:41:44+02:00

Adam Preisler commented

2021-08-05 12:41:44 +02:00

Basically I need to import .fbx files that have Lights in them, which should be possible and was possible in the past with UE4.

Now if I export it from 2.92 the file is somehow corrupted and upon importing it into UE 4.26 it crashes with this message:

Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/UObjectGlobals.cpp] [Line: 2381] Objects have the same fully qualified name but different paths. New Object: SpotLightComponent /Game/Maps/TestScene.TestScene:PersistentLevel.2108_59_VOSSLER_TestScene_Unreal_Lights.Point_001 Existing Object: PointLightComponent /Game/Maps/TestScene.TestScene:PersistentLevel.2108_59_VOSSLER_TestScene_Unreal_Lights.Point_001

Blender Version
Broken: 2.92
Worked: 2.79 - it could work in newer but that's what I tried and it worked.

Here are the files:

Blend:
BUG_FBX-Export-Into-Unreal.blend

2.92 exported file:
Lights_292.fbx

2.79 exported file:
Lights_279.fbx

Basically I need to import .fbx files that have Lights in them, which should be possible and was possible in the past with UE4. Now if I export it from 2.92 the file is somehow corrupted and upon importing it into UE 4.26 it crashes with this message: ``` Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/UObjectGlobals.cpp] [Line: 2381] Objects have the same fully qualified name but different paths. New Object: SpotLightComponent /Game/Maps/TestScene.TestScene:PersistentLevel.2108_59_VOSSLER_TestScene_Unreal_Lights.Point_001 Existing Object: PointLightComponent /Game/Maps/TestScene.TestScene:PersistentLevel.2108_59_VOSSLER_TestScene_Unreal_Lights.Point_001 ``` **Blender Version** Broken: 2.92 Worked: 2.79 - it could work in newer but that's what I tried and it worked. Here are the files: Blend: [BUG_FBX-Export-Into-Unreal.blend](https://archive.blender.org/developer/F10267470/BUG_FBX-Export-Into-Unreal.blend) 2.92 exported file: [Lights_292.fbx](https://archive.blender.org/developer/F10267473/Lights_292.fbx) 2.79 exported file: [Lights_279.fbx](https://archive.blender.org/developer/F10267474/Lights_279.fbx)

Adam Preisler commented

2021-08-05 12:41:44 +02:00

Added subscriber: @AdamPreisler

Richard Antalik commented

2021-08-06 01:00:00 +02:00

Added subscriber: @iss

Richard Antalik commented

2021-08-06 01:00:00 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Richard Antalik commented

2021-08-06 01:00:00 +02:00

Can you narrow down this case to perhaps 1 light only? I don't have UE to test this, but perhaps I should be able to inspect exported file.

Also you should probably report this to UE bug tracker.

Can you narrow down this case to perhaps 1 light only? I don't have UE to test this, but perhaps I should be able to inspect exported file. Also you should probably report this to UE bug tracker.

Richard Antalik commented

2021-10-14 23:43:59 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Richard Antalik closed this issue

2021-10-14 23:43:59 +02:00

Richard Antalik commented

2021-10-14 23:43:59 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

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Blender 2.92 FBX exporter does something wrong with Lights that Unreal then can't import and crashes #90453