What are your rendering and output settings? Also what is happening at 1:17 of your video? Are there any effects, adjustment layers, keyframes.
When you said you set up different project on a different computer, were you using the same footage? I wonder if there isn’t some possible issue there, what type of footage are you using?
Johnny Cuevas, Editor
Thinkck.com
“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.