Op-z controlling Behringer K2 via usb issues

So, I’ve been trying to use the OP-Z to control my behringer via USB with no luck. When I use both connected to Ableton it works with no problem.

I tried connecting a USB cable B to A with a adaptor (from my phone) A to C with no luck. Then a USB B to C, also with no luck. Then I bought a USB-C hub connected to the op-z and behringer that I managed to make it work for a while, but when I disconnected and tried again didn’t work anymore. I really don’t know what I made with the hub to work, if it was pure luck or just a combination of button pressing that I can replicate anymore.

Anyone have any tips? I really don’t want to depend on a pc to use both.