I’ve seen similar post that has been closed stating the bug has been fixed but it’s already a week or so and it’s still not. Multiple Helixes are plaguing Tol Barad island. The only way to get rid of them temporarily is to get on textures where they can’t hit you so they find new victim (although you have to log out to get rid of combat, otherwise good luck running back and forth as classic pre 40 experience).
Blizz, I’ve never complaining anything on the forum for the lat 16years of playing WoW but for god sake, do something about it. It has been fixed in original Cata, I’m pretty sure it can be fixed again…