@ nerd

For me, while the rendering is in process, it looks perfectly fine. Pretty much just like Poser 11. At the very, very end of the render generation, the "twitch" happens. I put Firefly as that was my main concern, but I've also seen it from just doing an Antialias Document render, which not only causes that twitch and thus image compression but also seems to shift child objects slightly. Noticed when I click Antialiasing render and then go back and forth between that and the Preview screen.