Animation bug in Lunaris Temple.

In act 3, Lunaris Temple level 2, tied to a column in the sea of blood, the animation of the suffering guy is bugged. In addition to his normal animation, he also rotates around his center pivot. See attached images for a before/after of the rotation:
Start of the animation:

Towards the end of the animation:

Then the animation cycles back to the beginning, so the guy snaps back to straight, and its starts over.