uv scale of materials on hollow BSP does not persist after building geometry

When creating a level with BSPs UV settings that are applied do not persist after building.

Regression: Yes
Working: CL-2386410
Broken: CL-2467323

1. Open UE4 editor from binary launcher
2. Create a new blank project with starter content
3. Drag a BSP into the viewport
4. In the surface properties of the details panel select "hollow"
5. In the content examples drag any material onto a surface of the BSP.
6. in the scale settings of the Surface properties in the details panel set U and V to 4.0
7. build all

Expected: lighting and geometry will build at the setting that have been selected.
Actual: UV settings are reset to a different value.

Build Geometry mess up every material into the map

need help about this material with "Alignment Fit"

Geometry Alignment keeps Resetting

BSP Brushes broken

Build Geometry kill textures.

How do I fix this image glitch?

Black Texture in viewport

Black Texture in viewport

BSP Material Bug

Black Texture in viewport