Regardless of choosing Pre-mult or straight all alphas coming out using the Avid DNxHD codec are coming out pre-multiplied. Also defaults everything to RGB color space. DNxHD works with both color spaces and it would be nice to have that option restored. If I'm missing a settings in the codec please let me know, but this is unacceptable.
CC2017 - PreMult Alpha, Notice black line all around green box_RGB color.
CC 2017 - Straight Alpha-black line all around green box_RGB color.
CC 2015 - Straight Alpha- Clean all around, 709 color
"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.