Elune Stone light beam moves around since the Naxx patch was dropped, looks like the invisible rabbit is not being rooted. To reproduce the issue, summon an Elune Stone and watch it dance. What I expect is the Elune stone to stand still. I currently use these to tell my tanks/raid members where to stand. With the beams of light now moving around, these can no longer be used as markers. This issue is not limited to my character, realm or region as evidenced by this reddit post (https://www.reddit.com/r/classicwow/comments/k5kj4q/elune_stone_light_beam_moves_around_since_the/)
Could this have something to do with the fix to Battle Companions such as the Gnomish Battle Chicken? I noticed today that it’s now following me. Before, I would summon the chicken, it would root itself, and I would have to pull mobs to the chicken. This was a known bug (WoW Classic 1.13.2 Known Issues List - 8/27/2019)