We are having an issue with another essential plugin on our site called “All in One Cart”, where the product rules fail to work with the quantity rules, and instead ‘break the order’
They said that they worked on the issue for a while and found it is an issue with the roduct Quantity (Min/Max/Step) plugin. They sent the following message:
The problem is caused when your quantity plugin works with the filter 'woocommerce_quantity_input_args' (One of the filters of WooCommerce needed to run the loadAjax function. Please contact the author of your quantity plugin and ask them for help.