[syslog-ng] restart vs reload

Hi, I am trying to dynamically change the output message format between RFC3164 and RFC5424. root@localhost:~# diff /etc/syslog-ng/syslog-ng.conf /root/syslog-ng.conf.bak 365c365 < network("192.168.122.1" transport("udp") ip-protocol(4) port(514) ---

syslog("192.168.122.1" transport("udp") ip-protocol(4) port(514)

If I use: "/usr/sbin/service syslog-ng restart" it works fine, but if I use "/usr/sbin/syslog-ng-ctl reload", the message format does not change. I am using syslog-ng version 3.19 Any thoughts? Thanks & Regards, Alex