We noticed that one of our hosts was causing this error to be thrown
1360776820.430495 Reporter::ERROR non-optional field “ts” missing in initialization ([note=Signatures::Multiple_Sig_Responders, src_addr=, sig_id=, event_msg=, host_count=5, sub_msg= has triggered signature on 5 hosts])
I looked into it, and it looks to me like Multiple_Sig_Responders is in fact missing that field.
@@ -270,7 +270,7 @@
orig, sig_id, hcount);
- [$ts=network_time(), $note=Multiple_Sig_Responders,
$src_addr=orig, $sig_id=sig_id, $event_msg=msg,