Render and Export of Video Won't Playback

[Landon5CA7]

Hi,

When I play my video in the timeline without a render the video footage plays back smoothly. However, when I render or export the video the footage either doesn't play or drops lots of frames. As soon as I delete the render files the video plays smoothly again. I was wondering if I could get some help on this issue. 

Thanks!

[Ann Bens]

Why do you want to render if it plays smooth in the timeline.

Choose a different preview codec in the sequence settings.

Post screenshot export settings.