I'm having issues using flags in a t_branch_timeout()  of failure_route{}

A brief summary of the code -

onreply_route{

    setflag(14);

}

failure_route {

    if (t_branch_timeout()) {

       xlog("L_ALERT","t_branch_timeout()\n$mb");

    }

}

The call flow is below, t_branch_timeout() is being triggered when the 200 OK is not ACK'd

-- INVITE ->

<- 100 Trying -- 

<- 180 Ringing --

<- 200 OK --

<- 200 OK --

<- 200 OK --

<- 200 OK --

I can attempt to create a minimal .cfg if anyone wishes to replicate it, assuming I'm not missing something stupid.

Thanks,

Matthew