Dont autodetect it, just add a 32 or 24 key m-audio or other brand and connect the right midiports, then it should work.
I have to say though i dont like the support this device has in reason.
Maybe the props need to update the supported devices in reason sometime it hasnt changed in ages. Also the M-Audio Projectmix is not fully supported this is disturbing to me aswel
Anyway just add it manually!