I think somewhere in Thumbnail Generator::Generate Thumbnail FromTexture() is applying this washout.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-185653 in the post.
| 6 |
| Component | UE - Editor - Content Pipeline - Variants |
|---|---|
| Affects Versions | 5.0, 5.1, 5.2 |
| Target Fix | none |
| Created | May 11, 2023 |
|---|---|
| Updated | Jun 23, 2025 |