just upgraded to 24.1 and I have zabbix agent sync disabled but the settings from FW1 still was sent to FW2. I've seen this happen on two different HA installations. I tried enabling and saving the sync settings then disabling them again but everything still syncs. I have webgui and zabbix agent set to not sync and webgui works correctly but zabbix doesn't.
Update to 24.1.1 and it's fixed. The declaration for NAT sync had an issue.
Cheers,
Franco
Thanks Franco.