User blog:ArtixBot/Neo's Eyes

https://www.facebook.com/media/set/?set=a.640287359419473&type=3&l=db3549506b

"It's unknown if this is due to her semblance, or an inconsistency in the animation."

So, I don't think this is an error in the animation that is on Neo's Appearance section on her character page. I'm willing to bet it's fully intended.

Whether or not it is a result of her Semblance, or that her having two brown eyes was the actual animation error, I have no idea.