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.

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

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

No flickering

Have Comments or More Details?

Head over to the existing Questions & Answers thread and let us know what's up.

Login to Vote

Cannot Reproduce
ComponentUE - Graphics Features
Affects Versions4.13.1
CreatedOct 26, 2016
ResolvedJan 23, 2017
UpdatedJul 14, 2021