Rekordbox 4.2.3 - NOT SYNCING PLAYLIST

I have the same problem. I just get an error saying the file is missing... 

Also got a gig, this saturday and I don't have time to fix all the hot cues and loops I memorized. That would take me days to do... 

broke on Mac too, back to 4.2.2 :(

How do you downgrade to 4.2.2? 

I never deleted it, always rename the previous version before installing the new on Mac, not sure on PC, then you have the original OR simply save the downloads and reinstall an older version if needed

same here, I upgraded tonight, added new songs, went to a gig that i had, plugged in my USB and all i had was OLD STUFF !!!

PIONEER MUST FIX THIS ASAP !!!! because they literally screwed my night !!!

WTF PIONEER !? Do you even test your software ?? Bugs like this are unacceptable, especially for a company who charges 2k+ for a player... that you can't play your tracks on.

Same issue - 4.2.3 broke playlist syncing

Golden rule - Don't update before a gig.

This happened to me tonight. Had a corporate event tonight and playlist would not sync

Same here, please FIX this! 

Ps. i'm on Yosemite, previous version worked fine (4.2.2)

Yep - Same here. Playlists out of order, and some new tunes not synced.

Same here!

Pioneer, where can i download version 4.2.2 for windows?

Nobody got a reply of Pioneer here??????????

Why???????????????

I' ve the Same Issue and my TAGs would be deleted, when i Close Rekordbox?

Please HELP ME!!!!

All,
Sorry to hear about these issues. This Sync manager bug that our engineers already identified the root cause and will finish fixing the issues very soon.

Sorry ? they say they're sorry ??? How do a big establishment like pioneer release an update without testing it ???? and now they say they're sorry !!!

Yes. Never upgrade before a gig. I upgrade on a Sunday night after its been out for a week or so and then I have the entire week to 'test' it. 

Unfortunately Pioneer doesn't test its new versions as thoroughly as we would like, so don't expect it to be flawless out of the box. If your career depends on this software, keep backups, don't update before an event. Simple as that.

Stick to 4.2.2 for now until they patch this issue with 4.2.4.

Having the same issue, just reformatted my USB sticks as I thought they were the problem.

See above; 4.2.4 has been released, please update and try again - all should be good!

I'm on macOS Sierra, Rekordbox 4.2.4 and can't export my playlist to usb ... haye gig next saturday ... just have an error "translate: an error occurs while export' . need to export many times one track per time. what I'm doing wrong?

@Camilo > Did you follow the instructions in the official answer at the top of this thread?

well, the problem is solved now, not with the official answer, here is how i did:

1. open key for re-analize my full collection

2. analize the tracks again

3. formatted my usb fat32 FULL format (not just quick)

4. exported the playlists i need

5. enjoyed testing on my cdj2000nxs

i must to say on past gigs i had problems with usb that didn't read on first try, only after 4-5 in-out-in-out the cdjs @ the club was reading them ... was not cool situation on 2 usbs with same problem. i hope don't have this problem again after this new solution. thanks for your quick answer.