Pavlovia: keeps loading

It seems to start and run ok, but when a movie plays you get a black screen. Looking at your movie stim code, it looks like your movie sizes have gone wrong. PsychoPy will default to height screen units if you have not set you experiment settings to something other than “use prefs”, so currently your video is playing in height units, (where 1 is the height of your screen) but your video is sized [1440, 758], so that means the video is sized 758 screen heights on the y-axis - this is why you cannot see it. If you want to use pixels, set your experiment settings screen units to pixels.