Reply To: Piero: Cycles Hair Shape Settings in Blender 2.90
@bkol could you provide us with a link to your .blend file? (Use Dropbox, Google Drive, or any filesharing service). Please include all images:
I can hardly see any lines at the intersection, just vey faint and only when zoomed in really far; nothing like what we see in your case:
You can probably not even see it here (try downloading the screenshot and zoom in…)
From further away:
