no USB recording with OS 10 and Mac

with OS 10 in Stage, Rack and Toaster USB recording doesn´t work in my Macs (iOS 10.15.7; 12.6.8)

back to OS 9.0.8 doesn´t help. When I chose Input "Profiler" the Kemper gets silent (LEDs get dark, no input signal)

What i am doing wrong?

Problem solved! Input was on SPDIF. I don´t understand why I could use the Kemper normaly bevor, but with the input on "front" it is working now!