Thanks for the advice. If I was a pro with lots of money to afford several cameras, I would never use a phone, no matter how good the camera on it is. Unfortunately, I’m just a teacher who was trying to get as much coverage on a live school event as possible. As reshooting is out of the question, I am left with cutting it into about 3 pieces that I can stabilize, or cutting it all together.
Thank you very much for trying to help. It kept me from wasting my time trying to fix a mask on one video to a location on another.