Product Page keeps defaulting to show first product in list

Hi there - I am new to using Wix Studio and experiencing a slight problem. I have set up a pahge displaying products from a single category, but when I clik on a product to take me to the product page, it defaults to sending me to the first product in my overall product list. It is possible to use the preview tool to then navigate to the correct product from the dropdown, but this is not ideal for a customer. Is there a fix for this?

Thanks