Poor rendition with new "Adobe Color" profile
I noticed that fine color gradients in certain color tones render very poorly when using the new "Adobe Color" profile.
I'm using "Camera Neutral" as the default for my D800 files and the screenshot below shows the two side by side in a 100% crop (same photo, area of a purple flower petal, original on the left with "Camera Neutral", virtual copy on the right with "Adobe Color").
This is right after importing the photos, no edits at all, with my develop defaults of Contrast -33 and Blacks +25. Everything else is zeroed.

