XDJ-RX display window missing dual wave tracks

So you only have a problem with 1 USB stick?

Yes. Seems odd.

All the tracks are there except the visuals.

Only thing you van do is reformat and check for errors on the USB with the same program

i had an interesting issue recently where certain tracks would not load certain info like waveforms, no time indication, no progress bar movement, but the track would play when i hit play??? 

I solved the issue by copying the mp3 file (within the root directory) and adding new text e.g.: (re-analysed), so when I drag the 'new' track into rekordbox, it gets re-scanned and re-exported to usb as a 'new' track.

So now on my sticks I have some files that are doubled, but say (re-analysed) after the track title, and they strangely work perfectly now.

No idea what the initial issue was, had pioneer look into it too, and yeah, nothing really eventuated from it, i just worked it out myself...

Give this technique a try and see if it works for you :) (i only had about 4 files out of about 3500 that had an issue)