When using "World Position" and "Pixel Normal" nodes together. it causes artifacts in the material. In 4.19 CL# 4033788 this did not occur with the same material setup.
Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4670176
Artifacts appear across the mesh
Artifacts would not appear
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-67936 in the post.