Landscape renders black when baking with GPU Lightmass

A user encountered an issue with Landscapes not rendering once baked with GPU Lightmass. The user was using Ray Tracing. If using normal CPU Lightmass baking, landscape remains the same.

1. Create a Third Person Template project with Ray Tracing enabled
2. Enable Ray Traced Shadows in the Project settings
3. Enable Virtual Texture Support and Virtual Texture Lightmaps
4. Enable Ray Tracing Global Illumination (RTGI)
5. Enable GPU Lightmass Plugin
6. Create an Empty Level
7. Add a landscape and sculpt it to look like a mountain range
8. Add a Directional Light, SkyAtmosphere, SkyLight and Exponential Height Fog
9. Change the SkyLight and Directional Light to static mobility
10. Enable Ray Traced Shadows on both the SkyLight and Directional Light
11. Add a Lightmass Importance Volume around the entire landscape
12. Add a PostProcessVolume and enable the following:
    • Infinite Extent (Unbound)
    • Exposure - Manual
    • Exposure Compensation - 9.88

Result: Landscape renders all black once bake has completed
Expected: Landscape remains properly lit once bake has completed

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