Image not showing on front end (but shows in back end)

Hi,

I have uploaded products to my M2 site using Excel however I am having issues with images.

The images show in the back end but not on the front end. If you hover over the image or click on it (in the front end) the image shows. For the image role, I have selected all of them (Base, Small, Thumbnail, Swatch).

Sample product with this issue: https://id-workz.co.uk/powerflex-bush-kit-handling-pack-for-audi-tt-8n-2wd-99-06/

Any help would be great!