Hey ekneos,
so a few things: I am wondering if my particular babyface might be defective. When I bought it in January 2015 the included cables never worked, it didn't even start, but another cable I had (that had been shipped with a faderfox) worked fine. I didn't worry about it too much until later I discovered that literally no other cable but this single one works with the babyface. With some cables the interface will start, but it is never recognized by the computer. I assumed it was some problem with my setup.
Now, with the new cables I ordered, one worked at first but it does not work anymore since then. The cable that was shipped with the babyface worked (with usb-c adapters on both the data and power cable) and was very stable for about 24 hours, but the babyface doesn't start anymore with that cable.
Funnily enough, the same USB cable from the faderfox that has been reliable in the past works totally reliably with the babyface again, with a usb-c converter on it. I was able to get through about a 4 hour performance with that cable. Of course, there are no markings on the cable and I have no idea what makes that cable so special and how to get other ones like it. I have probably purchased 10 different cables at this point looking for another one that works reliably with the babyface, but I can't find one.
I think I'm going crazy. (Or, more likely, the Babyface is somehow defective)