Skeletal Mesh Has Flickering Artifacts On Mac

White artifacts appear when you have a stationary directional light in your scene with default settings that is casting a shadow, and a skeletal mesh is in that shadow after baking lighting.

You will see the artifacts on the skeletal mesh.

1. Open attached project on a mac (see environment)
2. Fly closely around the mesh around the backside

RESULT
White/grey flickering artifacts appear on the back of the mesh

EXPECTED
No flickering