It looks like I missed something. @casabenedetti has flagged up in a post today that the DROP_HOSTILE was not showing up in the logs, although they were set as enabled.
If you just press the Save button on the Firewall Options page and then reboot, it will then work correctly.
I obviously missed some command in the update.sh script to include the modified logging options.
I will look to get that corrected as quickly as possible so future upgraders to 184 don’t have the problem.