In this frame of animation you can see that the foreground character has a strange pink glow on her wrist.
What would be causing this as everything else in the animation is fine.
Try …
- to clamp the output
and check the shader that there is no self illumination.
I would suggest to check if the characters uv’s are all in proper 0 to 1 space, and like bernhad said check for some bogus material, also may want to check the backfacing on the object.