Hi @nickvsnetworking
I did not understand the logick, why function addAVPsfromJSON must return 1 while processing root. I was just comment out "return 1" in the end of if statement. This allowed me to send async request to my HSS, I see response in tcpdump. However event_route[diameter:response] did not catch the response. At this point I`am stuck.
If you will be more lucky please contact me, may be I did something wrong. See my simple config into attached file. [kamailio_cfg.txt](https://github.com/kamailio/kamailio/files/5902879/kamailio_cfg.txt)