Can't view RB playlist on CDJ Nexus 900s but can on my XDJ-RX

Hi

I have an XDJ-RX. I use Rekordbox playlists successfully with it.

I took my same USB (with exported playlists on it) to a club and plugged it into a CDJ Nexus 900. On the CDJ my playlists didn't display - only the contents folder and Pioneer folder.

The USB is a 3.0 Samsung 125gb and is close to full. My playlists must have exported properly because they appear on my XDJ-RX! So that can't be the issue.

Any reason why playlists show on one device but not the other?

Thanks

Chris