Movie Maker blurry photo issue

Hello. I am using the newer version of media player. It was downloaded to my computer approximately 3 months ago. I have saved an image as a JPEG and as a PNG from my computer. I used the snipping tool and saved it under both formats. The rest of the video is from a time lapse camera. I added captions to the front of the video where the image is located. I saved the movie in high def format and the video comes out clear all except the image that was saved as both JPEG and PNG (I tried both). The image is very blurry.  Why is this happening?