In After effects using Keylight, I have an issue with Horizontal lines appearing out of nowhere, appearing behind the subject in one frame of the video. I've tried getting rid of it by changing a setting in keylight, but the lines appear somewhere else in the video. I've tried restarting, uninstalling/reinstalling, but to no avail. I have the image below. We shot on an Sony Ex3 1080p/24. The project setting is 1080p/23.976 in premiere & After Effects. I'm running version CS6
