Niagara GPU Particle Flickering at Certain Angles When the System Origin is Occluded.
Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 Preview 6 CL# 5439949, and 4.23 CL# 5533539
The GPU Niagara System will flicker and disappear at certain angles
The system would not flicker
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-71971 in the post.