When changing the Mip Gen Settings of a Texture 2D Array, several errors such as: Error: Corrupt texture [NewTexture2DArray]! Missing bulk data for MipIndex=0 appear in the output logs and an Ensure is hit as well.


Tested in //UE4/Release-4.26 @ CL 15973114 and this did not occur so marking as a Regression

Steps to Reproduce
  1. Open a project
  2. Right-click in the Content Drawer
  3. Select Materials & Textures > Texture 2D Array
  4. Open the Texture 2D Array asset
  5. Add a texture to the array by clicking the + button next to Source Textures
  6. Navigate to the Mip Gen Settings
  7. Change it from NoMipMaps to FromTextureGroup


An ensure is hit and an error saying there are corrupt textures appears


No errors appear in the output log when changing the Mip Gen Settings

Ensure condition failed: Source [File:D:/build/++UE5/Sync/Engine/Source/Runtime/RenderCore/Private/RenderUtils.cpp] [Line: 826]

[Callstack] 0x00007ffc529012df UnrealEditor-RenderCore.dll!UnknownFunction []
[Callstack] 0x00007ffc24080eaf UnrealEditor-Engine.dll!UnknownFunction []
[Callstack] 0x00007ffc240923a0 UnrealEditor-Engine.dll!UnknownFunction []
[Callstack] 0x00007ffc528d065b UnrealEditor-RenderCore.dll!UnknownFunction []
[Callstack] 0x00007ffc5290a221 UnrealEditor-RenderCore.dll!UnknownFunction []
[Callstack] 0x00007ffc529146c8 UnrealEditor-RenderCore.dll!UnknownFunction []
[Callstack] 0x00007ffc272115ea UnrealEditor-Core.dll!UnknownFunction []
[Callstack] 0x00007ffc27211a6e UnrealEditor-Core.dll!UnknownFunction []
[Callstack] 0x00007ffc27211e01 UnrealEditor-Core.dll!UnknownFunction []
[Callstack] 0x00007ffc5293abc3 UnrealEditor-RenderCore.dll!UnknownFunction []
[Callstack] 0x00007ffc5293f694 UnrealEditor-RenderCore.dll!UnknownFunction []
[Callstack] 0x00007ffc2784382b UnrealEditor-Core.dll!UnknownFunction []
[Callstack] 0x00007ffc2783c610 UnrealEditor-Core.dll!UnknownFunction []
[Callstack] 0x00007ffc9b007c24 KERNEL32.DLL!UnknownFunction []
[Callstack] 0x00007ffc9cfad721 ntdll.dll!UnknownFunction []

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Cannot Reproduce
ComponentUE - Rendering Architecture - RHI
Affects Versions5.0-early access
Target Fix5.0
CreatedJun 3, 2021
ResolvedJan 20, 2022
UpdatedJan 25, 2022
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