I bought 2 weeks ago XDJ-RX.
I immediately installed the firmware 2.10.
Rekordbox I have used since time the CDJ-900, CDJ-2000 Nexus (almost 2 years).
The music is the same. The music analyzed. 2 laptops - Windows and MacBook.
The problem when mixing music. One gets the feeling that the tracks diverge and run away from each other. Trial and tests revealed that this problem is present on the tracks at the same speed. Even if you load both decks at the same track.
I tried to create model tracks in the sequencer. I tried to turn off the quantization and other techniques. I've tried to disable the master tempo. When it's off, the tracks go together very well and long. But without the function master tempo very uncomfortable.
Had no such problems earlier on one device Pioneer (CDJ350/400/900/2000NXS/1000MK3). The problem persists even when the pitch is 0 %. The problem persists when you play with the stick, when playing over LAN.
I'm very upset.
Rekordbox the latest version. The normal mode analysis. It seems to me this device is very productive, but the problem in the firmware. Russian support Pioneer can't help me.
The problem is known to many, as I understand it. It is necessary as that to solve!