To troubleshoot your product/record images not displaying issue, you can navigate to your Algolia index dashboard > Browse tab > Display preference > check Images tab, and review which attribute you're using to display the record/product image urls.
You may also try to open the image with the image attribute url and see if you're using the correct url. If Algolia is returning your record/product image urls correctly, but you are unable to display the product images on your frontend, we would recommend reviewing your frontend code as detailed implementation advice is out of Support scope at this time.