Again, my issues are with materials based on the Posersurface root node.  I had made tweaks that rendered well in P13 but when I load the models into P14 some of those materials simply don't render.  AO doesn't enter into it since these tweaked Firefly materials don't have an AO channel (that I know of).

I still haven't made time to go back to P14 to mess with those materials to see if I can get them to render as they did in P13.  I'd like to figure that out as backward compatibility has always been important since I use a lot of legacy material.

Molly