I have the Custom Idle Animation, and my character was amusing herself by doing one of the dances, I forget which, but it involves lots of twisting of the body. I'm pretty sure it's not supposed to be *this* much twisting, though... ouch!
It's repeatable, the unnatural twisting occurred every time she turned around during the dance. (If you open the image in another tab, you can see it in high resolution)
In case it's relevant, the exact location was south coast of Southern Elsweyr, very close to the book "Pellitine Postings: Elsweyr, My Love, page 44".
[edit] I just checked, the dance she was doing was /dancealtmer, and I just tried it again, but no bizarre twisting this time. Perhaps it was network lag ? My average ping is 400, which probably doesn't help avoid things like this. If I ever reproduce it, I'll record a video.
Edited by vsrs_au on December 8, 2022 6:33AM PC(Steam) / EU / play from Melbourne, Australia / avg ping 390