The "prop" like thing is only viewable on the computer with the SD card in it. I tried to video it with an iphone, but it only shows up very slightly there. I guess not a huge issue if it is eliminated during post.
My concern was more if the "prop thing." It is visible before exporting in fcpx. Panning thing I was going fast so figured that was the issue. I'll try to isolate the prop thing without using post.
I'm having issues with videos taken heading toward tree line with a clear sky. It almost looks like props, but it is not. The shaky video is on the bottom half of the frames. What would cause this? I can upload the video if that would be helpful.