The software I use is Sony Vegas Pro 16.
I am a casual editor and currently I am working on a video for fun where I downloaded a green background png and basically masked over a certain area to pretty much make it a green screen. The problem is, I did it frame by frame where I adjusted the size of the green background. Upon rendering the frames go jumbled up and all over the place and miss a couple of frames (I have attached a video and if you cant open the video heres a link ). If anyone knows how to render it to make it as smooth as possibe I would appreciate a reply
Thanks.