So I'm using photoshop cs6 (which I'm still fairly new to using) and yesterday I got on my laptop to make a gif and went through the normal routine yet when I was done importing the video frames to layers the outcome was that only the bottom half of the image was visible as in the screen shot below. Normal images don't have the same problem it only effects the videos imported. I've searched online for a solution to this but so far I've found nothing that would help with this situation.
Please help me.