So, Richard, I assume you mean that it was originally a library defect (going back at least to the beginning of Iray in DS), and nVidia refuses to implement a change that would accommodate those who were using that as a feature.  I need to upgrade and would appreciate advise as to the the quickest and most efficient method for converting transparent emissives that use the Cutout Opacity=0.000001 method. I use one to light faces (an approach I purchased from a vendor here on Renderosity).  It sits right in front of character head in most every scene. 

Initially, after the DS version following 4.16.0.3, my testing showed a flaw in the conversion method offered then.  The object was visible on reflective surfaces (e.g. any shot that included character head in a mirror). Has this been addressed?

Fortunately, I have, for the most part, opted to change the size (for some reason) of the object instead of changing the opacity, so, if I can zero in on creating a 1-2 click preset method, I might be able to convert with a minimum of disruption to my work flow. Thank you for any help you can provide.