[OpenSER-Users] using remove_hf and append_hf in both route and failure route

I use remove_hf and append_hf to modify the RPID in the Request_Route, which works fine, but then if I try it in Failure_Route I end up with two RPID headers. Is it possible the revert_uri() is doing something to it? If not, can you just not do a remove/append like this? I checked to make sure the remove_hf is returning true. I triple checked to make sure my variable contains only one header. Here are some snippets from my config: route { ... ... if (method=="INVITE") { perl_exec("command", "0"); /*sets rpid and ouri vars*/ if (is_avp_set("$avp(rpid)")){ if(is_present_hf("Remote-Party-ID")){ remove_hf("Remote-Party-ID"); } append_hf("$avp(rpid)"); } avp_pushto("$ru","$avp(ouri)"); ... ... failure_route[1]{ if(method == "INVITE" ....blah blah blah revert_uri(); perl_exec("command", "1"); /*sets rpid and ouri vars*/ if (is_avp_set("$avp(rpid)")){ if(is_present_hf("Remote-Party-ID")){ remove_hf("Remote-Party-ID"); } append_hf("$avp(rpid)"); } avp_pushto("$ru","$avp(ouri)"); ... ... Best regards, Mik Cheez