When you add a product to your cart and go to the actual cart page and then click on the product in the cart, it should take you back to the product URL, but it does not. It simply redirects you back to the /cart page and the page loads empty.
I have a vanilla xstore demo setup (Kids Toys Demo from your list of prebuilt demos https://xstore.8theme.com/elementor2/kids-toys/) This happens both with the Xstore theme and the Xstore Child theme
The only plugins installed are:
Elementor (free version)
WooCommerce (8.1.1 the latest)
Xstore Core (5.1.14 the latest)
When I turn off the Xstore theme and revert to Twenty Twenty Three or Store Front, the issue goes away.
If when viewing the /cart page and you right click the product in the cart and choose open link in new tab, you are taken to the product with all of your variations intact, you can update your qty / variations and update the product and return the cart.
I have been able to replicate this across 7 different websites on multiple different web servers. The common factor for all of them is that they are running version 9.1.14 of Xstore and version 5.1.14 of the Xstore Core Plugin.
