Categories Viewing Problem

Hello. I cannot seem to display the categories separately. Although I use the shortcode to display one category after each heading, all of the FAQs appear instead. How can I solve this? Thank you. In the post I have separated each category as per the instructions, reading like this: <h2>Online</h2> [smart_faq cat=online-faq] <h2>Post-Production</h2> [smart_faq post-production-faq] <h2>Production</h2> [smart_faq production-faq] https://wordpress.org/plugins/smart-faq/