Mac Mini M4 Pro USB Audio CODEC issue with Behringer Xenyx QX1002USB mixer

The sound out works (all sounds from the Mac) are going well to the mixer and then on the speakers, but nothing goes out from the mixer to the Mac.

It worked on my old iMac27 late 2014, but not anymore on my MacMini M4 Pro.

In the sound parameters from Sequoia, I do see the USB Audio CODEC option in the Inputs, but no signal going in, although in the Outputs it is there and works.

On the Xenyx, no matter how the switche (usb to main) is, nothing coming out.

Am I missing something?

TIA

[Re-Titled by Moderator]