why is my second monitor that is playing back my main feed oversaturated and blown out

When I have the main video playing on one Monitor and my timeline editing on another monitor the monitor That has only video feed is oversaturated And when I switch the monitors so that my main monitor is showing the video feed and my secondary monitor is showing the editing timeline I still have the same problem but when I'm looking at the editing timeline the video feed is normal and how it is supposed to look I am using a 13 inch MacBook Pro