Black Magic Production 4k Camera footage of the Grand Canyon in 4k

I am a professional colorist working in television. I recently got the opportunity to play around with the BlackMagic Production 4k camera. I work with alexa and red footage all day at work and wanted to see how this cameras color science held up to the big boys. I shot in 4k raw dng and color graded with Nucoda Film Master. I was overall impressed with the results but I did run into some problems. About 10 percent of my shots got a weird frequency issue when I put a scurve on them. My theory is that they