Rekordbox problem

@Rosta Rosta > Could you please provide a bit more detail? That post is a bit vague as to what the exact nature of the problem is.

after analysis at many tracks does not work sync

That still doesn't provide me with any information.

Are you using then within rekordbox DJ in performance mode?

Do you have the grids properly aligned on the tracks?

Are you using sync?

The tractor must set the grid and everything is ok yes I use sync

performance mode?......no

What do you mean "tractor" -- did you set the beat grid on that track within rekordbox?

BeatGrid settings in DB's hard for me .In Native Instruments Traktor not have to beat grid set up and sync goes well.

You're not making this easy for others to help you when you provide simple answers and single sentence descriptions of the the various issues. The more specific you can be, the greater the chance for help.

1. Is this this sync issue apply to all of your tracks that have been analyzed?
2. Is there a particular genre that has the issue?
3. Do genres with a fairly fixed rhythm (example: EDM) analyze and sync properly?
4. Have you tried using the "Dynamic" setting?
5. Since you're not in performance mode, you must be using some DJing hardware. What's your current setup?
6. Have you tried manually setting the first beat of a track that's not syncing properly?