IPAD pro ios17.2 does not recognize UR 12 Interface

Both Cubase LE2 and LE3 is not recognizing the UR12 audio interface. I have powered the interface via a 5Vdc USB hub. The interface itself connected to the original apple media hub. The white status light on the interface is on. If I connect an instrument I get signal to the interface as well. I also tried garage band. No joy either. Any idea what‘s missing?