why the automix does not work with xdj-xz

I just bought the xdj xz (I already had the xdj rx2) and I just realized that the rekordbox automix doesn't work with the xdj xz (it worked very well with the xdj rx2) why the automix does not work with xdj xz? I tried with rekordbox 5 and also rekordbox 6 but it does not work with any of the 2, expect to find a solution because the automix is ​​very practical during meals during birthday weddings etc ... and considering the prices of xdj xz it is still unfortunate to lose the automix function when we should have more options by buying the xdj xz which must make us evolve. thank you in advance