Good idea, but exports incorrectly – Slow Fast Slow - Control the Speed of Your Videos Review

The app is easy to learn and use, but when I export the video, it is off-centered and has black area around it. Tried to do square (cropped), square (uncropped) and original (which is what I wanted), but all of them exported weird :(
Review by RyanHolmgren on Slow Fast Slow - Control the Speed of Your Videos.