The sweepAttack particles won't render when the player is in third person view (the view that you can see the face, press F5 2 times). In the screenshot, the particles were made by powered repeating command blocks with
/particle sweepAttack ~ ~5 ~ 5 5 5 1 10
in it.
Linked issues
Attachments
Comments 5
Reopened per MC-93298.
Resolving as duplicate of MC-74764, it’s the same issue.
Depends on angle. See mine https://bugs.mojang.com/browse/MC-88120