Regarding previewing results - it matters how it's interpreted (in terms of chroma location), that makes a big difference , and the way it's upsampled to RGB , or the way you zoom for the screenshot (what algorithm). You can get completely different results appearance wise with the same video in a different application or player
Within resolve itself , if you were only to look at the histogram, you can get fewer spikes using nearest neighbor, chromaloc left
Does it "look" better ? It really depends on what is used, and how it's interpreted, or what scenario you're using it for
I'll try to figure out what sony is using. I only have vegas 13, but it produced the same v210 as in your screenshot
That DNxHR result is completely unexpected and unacceptable. Something is up
And I'm getting similar results with Adobe's DNxHR/DNxHD implementation , also on encoding/decoding. It looks like some sort of DCT compression issues.