Black Lines on Meshes with Ray Traced Global Illumination Enabled.
Found in 4.22 CL# 5660361 and 4.23 CL# 6037269
Meshes with have black outlines all over the surface that looks like wire frame
Smooth shading of the meshes
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-73167 in the post.