If you click the eye icon for a Walmart listing, it may take you to a page like this:

The issue here is that Walmart takes time to send us the updated product listing link. Sometimes, they send us cached links which will take you to a page as in the above screenshot. Don't worry, there's nothing you need to do. As soon as Walmart sends us the updated link, the eye icon will correct itself.  In the mean time, you can log in to your seller center and click "view published item" to go to the product listing.