Anyone know how this happens?
I've encountered it a couple of times.
Somehow, the "occlusion" element is offset from the eyeball. Not sure what I did to cause it. CC3+ character.

I run into this all the time...for months now. Any ideas as to what's going on? 
CC 4.31.
Only reliable way to "fix" it is to turn off CC_base_eyeOcclusion.

Thank you. I'll give those suggestions a try.

I'm seeing this from time to time in iClone, as well. Is there any way to fix it there? "Fix eye element" isn't available.

That button is in CC only.

I understand. I was hoping, though, that there's a way to correct it right within iClone (the problem doesn't exist with original CC character).

I have a rather involved 7-step process for bringing updated characters from CC into iClone while preserving animations (motion, expressions, reach targets etc) and their keyframes, but I try to avoid it whenever possible.

Kind of crazy that RL hasn't fixed this.