Hello,
I’m sorry the shortcode isn’t working for you.
Thanks for chiming in here Alan! I tested this out in my local environment, and the shortcode was working for me using the category argument (even with the curly double quotes).
Dobie, can you please share your system info with me, as well as a link to the page you are displaying the shortcode on? Can you also try testing for conflicts with your theme and other plugins? If you would prefer not to do this on your live site, WP Staging will let you create a quick copy of your live site that you can use for testing. Let me know what you find!
Thanks,
Jennifer