I followed all the instructions in the article https://medium.com/@parkerbenitez/opnsense-next-gen-firewall-a-deep-dive-into-suricata-integration-e5b71cb9b3b3 completely. However, in the download section, after selecting "enable selected" and then clicking on "Download & Update Rules," the rule file appeared empty, and I'm unsure why. Can anyone please help me with this issue?