From 5.6 onwards, Skylight Leaking is much stronger in reflections than in the world.
Also tested on //UE5/Release-5.6, CL 45232827
1. Download the Licensee's test project and open (see addl. info URL)
2. Open the map "/Game/Developers/dgoupil/BugUDN/Skylight/SkyLightRT_Bug.umap"
3. Observe the reflection visible upon first entering the map (BugItGo 556.264438 5.430237 133.133499 -6.442047 -8.164466 0.000009)
4. Observe the strong white tint on the floor and walls that are not being reflected by screen traces.
5. Select the actor "Y99_Day_03_PPV4"
6. In the details panel, under Global Illumination -> Lumen Global Illumination -> Advanced", change the color of "Skylight Leaking Tint" to a strong saturated color (for example, 1,0,0)
7. Observe that the strong white tint is now the color you selected.
8. In the same Post-Process volume, reduce the Skylight Leaking to 0
9. Observe the strong tint is no longer present
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-348405 in the post.
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Component | UE - Graphics Features |
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Affects Versions | 5.6.1, 5.7 |
Created | Oct 10, 2025 |
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Updated | Oct 10, 2025 |