@rubenlascasas4
we have tested our plugin with the latest version of Woocommerce and WOrdpress and also the Storefront theme. I suggest you try to test your site for plugin or theme conflicts. try using Storefront and test if the quantity works, if it does then it must be a theme conflict. You can try contacting your theme author to check if there are conflict witht he scripts. If it is still broken you can check for plugin conflicts. try diasabling all plugins except for Woocommerce and Quantity Field on Shop Page for WooCommerce. With only 2 plugins active and using storefront theme try again if the quatity is working. If it works you need to enable your plugins one by one and test the quantity. If it works then the last plugin you enabled is causing the conflict. If it still does not work on that very basic setup send us a message here and we’ll work from there. THanks.