What computer operating system for your Premiere Elements 13? Have you updated 13 to 13.1 yet using an opened project's Help Menu/Updates?
What are the properties of your video
interlaced or progressive
pixel aspect ratio
If you do not know, then telling us the brand/model/settings of the camcorder that recorded this video might give us this important troubleshooting information.
How are you getting this video into the project....Add Menu/ and then what? And, are you working in the Expert workspace or Quick workspace of the project?
Let us start here and then decide what next.
If any questions about the questions, please do not hesitate to ask for clarification.