Analysis stuck on 0% + Export is disabled

@Josh > What do you mean "once a track imports"? Is this imported into rekordbox and transferred to the CDJ and then you can't adjust the pitch?

What USB sticks are you using? It sounds like something may be corrupted. I would fully format the USB and export again.

Josh, Are you linked while importing? If so, you have to go into the RB settings and "Allow analysis while LAN is connected"

I had this happen once on an AIFF track.  Closed out RB, restarted, still got stuck on the same track.

Closed it out again, converted the track to FLAC, then back to AIFF, and restarted RB, the track completed analysis.  Have not seen the behavior over the last two months.  Next time, I'll save a copy of the file that makes analysis hang and put it in dropbox for you.

@Gavin - Importing into Rekordbox. 

I'm using Kingston USB 3.0 ones, they've worked excellently up until this. 

This may provide more of an insight, this evening there were two seperate instances where it began to work again. 

1. A flashdrive that I used months ago was plugged in, and Rekordbox proceeded to analyse the imported tracks
   
2. Although I had set rekordbox to automatically analyse tracks on import, it did not begin analysing until I clicked export (to the same old USB stick.)