Just adding that I too am experiencing this same issue with 1.2.5 while sending firewall logs to a remote syslog server. Running the command

sudo systemctl restart rsyslog

will show firewall logging for a few seconds before it stops completely. Issuing the command again will result in the same thing - logs for a few seconds and then stop. It appears that logging outside of the firewall still functions as expected as regular console log entries are still being sent.