I asked around in our company and apparently this is a known issue, but last Friday I was alerted by my client that a clip had no color correction applied. I scrub every single clip before I render, but mistakes can happen so I thought maybe I just messed up. It turns out I saved a still from the exact clip that supposedly 'didn't have color.' Yes it's possible I could have mistakenly taken the color off after taking the still, but that would be pretty unusual for me to do. I asked my supervisor this morning and he says this problem has happened in the past.
We checked the original DNX media sent to the client and the color values came up detent (1.0). So now we have to check every clip daily in the DNX media for this problem. Is anyone else experiencing this issue? Before I sent this topic I see on that this was reported by a couple of people, including our own John Heitman back in 2014. So for what it's worth, this problem is still happening.