Hey, just came on here to update CDJ 2000nxs2 and saw this thread. The exact same thing happened to me on 2 gigs over the weekend - minute changes in tempo.
I have the DJM900nxs2 plus 2 CDJ2000nxs2 running and all linked.
I use an SSD as my main source of files and it's in the one player.
I also run Rekordbox alongside as I'm still in the process of getting my tunes sorted/finalised from my main hard drive. So if I suddenly think of a tune and it's not yet on my SSD I can pull it from Rekorbox.
I also thought at the time this is something to do with Master Tempo etc. But I was in the middle of the gigs so no chance to look properly.
Were you running Rekordbox too?
