[syslog-ng] IPV6 and IPV4 syslog-ng issue

Hi, *Issue:* *when configured both IPV4 and IPV6 syslog server IP's, I could see syslog-ng messages going to only one syslog server, either IPV4 or IPV6 syslog-ng server and that too to the latest server IP configured only.* Is there any known issue ? Please help me on this. Thanks & Regards, Venkat.