[SR-Users] sip trace not logging the first invite

Dear friends, I'm using the sip_trace module in order to log into a mysql DB all the SIP messages that are passing from my kamailio. I have the setflag(4) on the top of the route[0] and I have all the sip messages logged in the mysql Db. The problem is that I don't see the first INVITE of the call. Scenario: gateway1 --------------> kamailio ----------------> gateway2 The INVITE from gateway1 to kamailio is not logged. The trace is starting from the first 100 trying message. Is anyone aware on where the problem is ? P.S. By using the sip_trace() method I get the first INVITE but not the rest of the trace in the way that setflag(4) is logging. Thank you in advance Alex