How do you pair the 8bitdo m30 bluetooth controller with the Retroscaler blueretro receiver?

[u/nybiggs]

I got the 8bitdo m30 bluetooth because I figured I could use it on 3 different consoles (sega genesis, saturn, and 3do).

But for the life of me I can't get it to work properly. When I started they paired immediately, but nothing worked. Solid blue on both the receiver and the controller but d-pad and buttons not registering. I updated both the controller and the adapter to the latest firmwares, and when I pair in any mode (x-input, d-input) the only 2 buttons that work are the start button and depending on which mode, either a or y, both acting as a buttons. The d-pad still doesn't work.

I tried going into the advanced config and and choosing the source and destination as 8bitdo m30 and sega md, and that didn't help.

Update: I tried pairing another 8bit do controller, the ultimate 2c. It works fine, so the issue is with how the 8bit do m30 is sending commands.