My website doesn't appear to be updating correctly. I have a page where all products in a particular category are displayed, but I wanted to change the size of the thumbnails. I did this by creating a new image style, then I went into Content Types and Manage Display, changing the image style for the image field to the style I had set up. However, this does not change the appearance of the webpage.

Although at first I thought it might be the way I set up the image style, when I tried any of the built-in image styles they didn't work either. Any suggestions on how to address this?

Thanks in advance