I've been experimenting with the optional attributes for the mp_list_products shortcode on a static test page. I have two products with different titles, product IDs, and prices. I have tried six different combinations of shortcode attributes:
An example of how I wrote each shortcode is "mp_list_products order_by="title" order="DESC"" (using square brackets). As far as I can tell, this is correct.
But all six attribute combinations result in exactly the same page with products in exactly the same order; the products are listed in the same order as they do when no attributes are used (as in the link above). Clearly, some of these attributes should reverse the order of the items on the page. But they do not. Do I need more than 2 products to get this to work? Am I missing an essential attribute to make the order "stick"? Should I use all lowercase? Or what?