How to route UDP through one port and TCP through another port using Reality

[iopq]

The only way to keep the server undetected is to use Reality. But when I tried just simply routing the UDP packets to another port (to be masked to TCP by phantun) I got

[UDP] dial reality-udp (match Network/udp) 198.18.0.1:54337 --> metrics.brightcove.com:443 error: 127.0.0.1:2099 connect error: dial tcp 127.0.0.1:2099: connect: connection refused

I'm not knowledgeable enough about how to fix it

I used raw connections in both cases (same one, in fact), but I can consider changing

[iopq]

I'm guessing it's because UDP is still packaged in TCP? How would I resolve this?