Offizieller Kommentar
This was answered in another thread; the XDJ-RX does not have the ability to record within rekordbox as the unit itself has a recording feature (to USB). The RX audio interface does NOT have an input (to the computer) so it can't send that signal back for recording.
The only work-around is if you configure ASIO4ALL to manage your RX outputs, you are then able to record the master within rekordbox while still sending the audio to the RX.








