[Model Bug] Ravenborn LeBlanc model's polygons glitching every so often

I wish I had access to recording software to document it, but if you use the skin Ravenborn LeBlanc right now you will see her polygons flip-out every so often and stretch out for maybe half a second before going back to normal. I am in college for 3D modeling and animation and I assume that the problem is in the skin weights?

Like I stated, I don't have access to recording software so the best way for you to check out this bug is to just pull up that skin in game and do the following (this is when it typically showed up for me):

• Standing completely still, every so often you'll see random polygons clipping outward then back to normal
• Walk/Run cycle had it the worst in my opinion as it happened far more frequently when I walked back to lane
• Using special animations like Taunt, Dance, Joke etc.

Just look into it, maybe it is my computer having graphical problems but I don't think it is - it only happens with Ravenborn LeBlanc.

EDIT: Additionally during her recall animation and her dash the back of her head clips through her collar and it is really ugly - don't know if that is related somehow?