Hair and fur system - Flickering artifacts

Development Rendering
5

It might be the Raymarching. Try these one by one to see if they help any.

r.HairStrands.Voxelization.Raymarching.SteppingScale 1
r.HairStrands.VelocityRasterizationScale 0.5
r.HairStrands.RasterizationScale 0.3