This is a regression from 5.0.3 tested in the following streams:

Branch Change List Results
//UE5/Release-5.0 20979098 Did not reproduce
//UE5/Release-5.1 23901901 Reproduced
//UE5/Release-5.2 24608918 Reproduced

The source texture lighting appears to be rendering incorrectly when compared to the previous release.

Steps to Reproduce
  1. Create or open any project
  2. Place a Rect Light in the scene so that its lighting can be seen easily
  3. Set the Source Texture of the Rect Light to a texture with clear markings(Default Calibration texture in Engine Materials works great)
  4. Observe the Rect Light's light

Expected Results:
The lights are clear and match the source texture.

Actual Results:
The lights are blurry and diffused.

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ComponentUE - Graphics Features
Affects Versions5.1.15.2
Target Fix5.3
Fix Commit24833639
Main Commit24833932
Release Commit24833639
CreatedMar 14, 2023
ResolvedMar 29, 2023
UpdatedApr 29, 2023
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