@ghostship2 ; I eliminated every AO node (there were a lot) when I modified it for the first Superfly release, so it wasn't that. This time I deleted a lot of reflect nodes and even a few gather nodes (circa P5!), and used more dual root material setups to use the PhysicalSurface root for metals.

I'll need to make some simpler model to test which node/nodes is causing the crash.

But here is a P12 Superfly render of Urban Future 2:

There are umpteen subsidiary props in this set, and many have a dozen or more material zones, so forget about a MAT file. However, I did save the modified prop set out as a PP2, and after removing Stonemason's OBJs and JPGs, zipped it up as a PP2. Assuming one has Urban Future 2, they will be able to open and use my re-textured version. I'll get that posted to freebies.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5