Offizieller Kommentar
Hello Liam,
XDJ-RX engineers would like to ask you to export the tracks whose waveform is not shown on the screen of XDJ-RX again from rekordbox to your USB device.
After reexporting the traks, please check if the waveform is displayed on the screen or not.
As you asked about the LED, engineers would like to know how fast the LED is flashing. Is it flashing in a cycle of 1 sec? If so, it is normal when a track is loaded and played.
Sorry for the inconvenience and thank you for your kind cooperation.
Best regards,
CRM, Pioneer DJ