Costco site not displaying images

This only happens on the Costco site. Through many updates..now on the latest, only the main image is displayed. No alternative views are available, and the main image cannot be expanded. I've deletes cookies...and that does seem to work..for a couple hours, then back to the same issue. When I updated to 16...same thing, worked for a couple hours. It's a iMac/Safari issue, as I can use any other browser, or apple devise with no problems. Any help would be appreciated..and please don't ask if I've deletes cookies..history..I've reinstalled the OS and the same thing happens. What is special about Costco? I've asked them, and they don't seem to know either.