Hello,
I just bought a Kontrol Z1 in order to use it with Traktor DJ 2 on my iPad Pro 2020 11" (A12Z chip, USB-C).
I have connected the Kontrol Z1 with the original cable USB-A/USB-B to the USB-C Apple digital av multiport adapter (https://www.apple.com/uk/shop/product/MUF82ZM/A/usb-c-digital-av-multiport-adapter) connected to my iPad Pro.
Kontrol Z1 knobs, faders are not recognized by Traktor DJ 2, it justs detected as an audio interface. LEDs are off.
I have tried the following adapter and cable with the same result :
My Kontrol Z1 is working correctly on my laptop (Lenovo / Windows 10 / Traktor DJ 2).
The firmware is up-to-date.
Note that there is no power socket input at the rear of my Z1.
I have also tried to uninstall/reinstall Traktor DJ 2 on my iPad.
I don't know what else to try, really ! You guys are my last chance before I give up and send it back to the vendor.
Thanks a lot for your help !