In the AMM, the signal for each of my input channels is turned on, and the AMM is turned on, as you can see from the AMM channel bar (same as QU’s working state). I’ve read the directions, too. Passed aux1-aux6, pre-fade and post-fade were tried, but still not worked. The input channel putter was also tried at position 0, and now there is only one question about the sampling rate.