Unreal Engine 4.22.3 crashes when applying Ceiling Material

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#1

When trying to apply the Material Instance called “Ceiling” which was created form the “MetalWood” Material, the Unreal Engine crashes, with the following message:

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EpicAccountId:XXXXXXXXXXXX

Assertion failed: !BatchElement.IndexBuffer || (BatchElement.IndexBuffer && BatchElement.IndexBuffer->IsInitialized() && BatchElement.IndexBuffer->IndexBufferRHI) [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\Renderer\Private\MeshPassProcessor.cpp] [Line: 775]

UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Core
UE4Editor_Core
UE4Editor_RenderCore
UE4Editor_RenderCore
UE4Editor_Core
UE4Editor_Core
kernel32
ntdll

Any ideas? I can’t progress any further because of this? Thanks!

Rich S.

#2

I just applied the material instance to a cube brush, and it worked. Then I tried on the ceiling again, and it worked? I have no idea what happened. I didn’t change anything. ??? But I am pushing forward now.

Rich S.

#3

Things that make you question your sanity are great!

#4

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