Add to cart pop up doesn’t display and products not found for manual upsell

Hi

I just bought your plugin today but I have a couple of issues.

1st, I’ve enabled the Ajax add to cart button for upsells. After doing this I see your plugins add to cart button but when I press add to cart no popup is shown. I get a message at the top of the page to show the item was added to the cart and the “View Cart” link is shown next to the “Add to cart” button.

2nd I cannot manually add products to be linked in the upsell tab of the plugin settings. If I create a normal product then the plugin works, the problem is my site is selling a special type of lottery product. If I use the woocommerce interface to link a product on the product’s admin page then “Get Product Up-Sells” works and finds the linked products.

I’m wondering if the 2 problems are related?