Running Version 16.5.0 (49183) Pro on OSX Big Sur 11.2.3. I have packet filter rules installed for local development from the invoker ruby gem which forward port 80 and 443 to ports 23401 and 23402. As soon as launch Parallels they stop working until I close Parallels and reboot. I can see that as soon as Parallels runs there are additional packet filter rules "com.apple.internet-sharing" listed. Also if I run "sudo pfctl -f /etc/pf.conf" they start working again. Any ideas on how to troubleshoot further?