Displaying last viewed product not current one

I am using the Storefront theme within woocommerce and bought this plugin as part of the Powerpack.

Initially it worked OK but now when I scroll it shows the last viewed product and not the current product and I have no idea why or how to reset it.

The only thing I have changed is I downloaded and now using a blank child Storefront theme so I could make some changes and I believe (although I am not definite) it was at that point it started to display the wrong product.