When I watch the original file the video looks fine but in PP after color corection it looks super pixely and gross in certain darker shots. The video is full 1080p at 24 frames. The exported video has the same pixelation. Searched the FAQ's and couldn't find anything that really related to my issue.
Running CS6 with the latest update, Mac OS 10.7.5, file is .mov from a Nikon D3200, no error messages, I don't know the exact point it started to pixelate but it was for sure after I did my cc in After Effects but I've never had an issue with that in the past, only codecs I have are the ones that came with the software, hardware is a 21.5" iMac with a an i5 2.5ghz and 16gb of memory, I'm using mercury playback, and as I previously stated the problem occurs durring playback inside of Pr and it follows through into the rendered product and only on certain clips.