Foliage Loses Dynamic Shadows from Moveable Point LIght at given Light to Mesh Height

A Movable Point Light placed in the center of a field of foliage meshes will render shadows only at certain heights and going above those heights will cause the shadows to completely disappear.

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Also Reproduced in Main Promotable-CL-2564509 & Releases/4.8/Promoted-CL-2560772

1. Open QAGame Editor
2. Remove the Light Source, Atmospheric Fog and Skybox from Level
3. Add the Editor Cube (from Engine Content) to the Foliage Painter
4. Place a Movable Point Light in the level at (0,0,200)
5. Using a 50% Density and a Min and Max Z-Offset of 50, paint the cube in the level
6. Move the point light to (0,0,110)

RESULTS: The Foliage shadows will not pop in until you reach 110 in Z Height

EXPECTED: Shadows should be present and change no matter the point light height.

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Attached Project has setup already in place simply move point light up and down.