[syslog-ng] All surpassed messages are from Dec 31

This is strange. All suppressed messages I see have the Msg date re-written as "Dec 31 23:59:58”. Date never changes. Msg: Dec 31 23:59:58 192.168.100.73 Fdm[31436]: Last message '[FFE56B90 verbose 'P' repeated 1 times, suppressed by syslog-ng on