mixing my friends vocal audio file to another mix works fine, both decks in sync mode.
As I loop the last bar of the vocal audio file for transition reasoning and mute it, DJayPro changes the tempo of the mix constantly to the muted vocal track.
The only fix is to deactivate “sync” button?
@SirHannes yeah, this is some kind of bug with djay. It really seems to struggle with some Acappellas when there is no discernible beats. It’s not just with Acappellas either. Here’s a thread discussing this in more detail: