Update. I uninstalled everything. Drivers, Rekordbox. reinstalled it all. I'm now able to use rekordbox 6 with audio being outpul and I can control more things.
However some functions still do not work.
Beat Fx - X pad, fx frequency, basically this entire column of buttons does not work. Also if i turn the knob away from master all the audio drops unless its put on 1 or 2. I don't think its supposed to function that way?