blurry images woocommerce

Hello,

I am having a case of blurry images using woocommerce plugin. Some of the images are appearing blurry when I add a new product. They are the exact size images and some are blurry and some are perfectly clear. Here is the page…https://lucidmoose.com/shop/

The first 3 are clear but the fourth one is blurry when you click on them. The sizes of all the images are exactly the same.

Thank you
Ryan Nelson