failure in the xdj az controller

Good afternoon, after updating to the latest version of Filmware 1.21, I've noticed a loss of sound quality on both the master and headphone outputs. I also need to turn up the fader on each track to the maximum for songs with lower quality (this didn't happen with the pre-installed version). Also, in the old version, the Spanish language worked correctly, which isn't the case.
I'd also like to mention that there's no way to connect to Apple Music.
I would appreciate it if you could fix these issues in the next update. Thank you.