The R channel of UV1 is not a problem.

Steps to Reproduce

1. use the UV1 G channel in the material.
2. use it in Niagara or Cascade Sprite.

There is a sample in the attached project.

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-156851 in the post.

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Won't Fix
ComponentUE - Niagara
Affects Versions5.05.0.2
Target Fix5.4
CreatedJun 16, 2022
ResolvedOct 24, 2023
UpdatedNov 2, 2023
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