Track Not Loading On XDJ-RX

Hey there peeps!

I have an issue that just came to my attention, I pull up rekordbox and import the files to the USB all the playlist to no track errors whatsoever. Then I plug in the USB to my RX and there are a couple of tracks that do not load up. It shows as E. No File or Error File. I was wondering to see if anyone here knew the issue.

Cheers Fam!
Jay