Images are not cropping to specified image sizes

Hello,

Something happened today when I was using the Themify Builder, and images that used to be square (or nearly) at the bottom of each page became different sizes.

The images on each of the pages are supposed to be 375 wide and 340 high, and their settings still specify this, but this rule no longer seems to be dictating what the images are doing. For example, what you can see at the bottom of the above link.

Thanks in advance for your help.

Sarah

The page I need help with: [log in to see the link]