djtdkdallas I have video on left and right side, but the output window is not working. The arrangement is on MIX, Middle window on mix is not working or the out external screen. It only works when it first open!
Nick Can you post a screenshot? Also, perhaps you can try to disable your Mixer FX (you can do this by opening the Mixer FX window, and then then turning off all the pink and yellow buttons).