I did a regular Mogu’shan vault with a group. I took Energy Conduit damage during the Elegon encounter. We killed the boss, but the damage continued. I could not heart out as I was taking non-stop damage. I zoned out and the damage continued. I logged out and back in and the damage continued. I zoned into a different instance, and that didn’t help. I’ve logged out of the game completely, restarted Battle Net and logged back in and the bug is still there. I logged onto a different character, and that toon is fine, but then I logged back into my Remix character and the damage is still there.
Only solution I found to this was killing myself to get the bug off.