USB cue and playlist changes now present on 3000s

Hi All

So on multiple occasions I have made updates to playlists and cue points on my USB, via rekordbox on my laptop, while travelling to a gig.  I've spent hours sometimes on this.  In the past when I arrived at the gig everything appeared as expected.  These days I arrive and all my hard work is missing.

How can the work I've done been seen on the USB when I arrive for my gig?

Thank you for any advice

Emma a.k.a Em i6