Victoria 4 Eyes are not rendered in Daz 4.8

Did anyone encounter that the eyes are not rendered...in fact, they are missing and I only get 2 dark holes when I render a Victoria 4 using iRay in Daz 4.8. However, Michael 4 renders perfectly. Anyone knows how to overcome the settings that may have caused this problem?
Comments
Can we see render of the issue?
I have just tried this in 4.8, and V4 renders correctly in IRay. Can you please post an image of what you are seeing as RCDeschene asks?
how are the eyesurface surface settings set?
have you tried another eye mat?
I have the same problem with Victoria 6 eyes!
here it is
Problem with victoria 6 eyes render in daz4.8
What renderer are you using, what eyes, and what figure, it does not look like the default V6?
It is the original Victoria 6 and I used facemorphs to change her nose, mouth, eyebrows and chin parameters and Im using NvidiaIray...even with her original blue eyes I have the same problem.
Is that an optimized Iray shader or did you just load V6 with her 3Delight shader and try it in Iray.
The black eyes are caused by the 7_EyeSurface material zone, if your not using an Iray shader then chances are it's Opacity Strength has been set to 0%.
It's Victoria 6 with original textures....I just selected Iray and rendered didnt change the settings, all defaults... would you please provide a step by step guide on how to render with iray? or is there any video or help document available?
thanks
If you look in DAZ Studio Formats > My DAZ 3D Library > People > Genesis 2 Female > Materials > Iray, you should have a file called Iray 'Optimised Genesis 2 Feml;ae MAT.DUF', apply that first, and then try your V6 eyes.
This is very useful for Iray beginners : http://www.daz3d.com/forums/discussion/56788/iray-start-here#latest there is a lot to learn about using Iray to get the best results, you can always change the render engine to '3Delight' which is the one people have been using for many years
There are docs on Iray here : http://docs.daz3d.com/doku.php/public/software/dazstudio/4/referenceguide/interface/panes/render_settings/engine/nvidia_iray/start
Thank you so much