Hi guys, I have problems playing tracks from DAW to x18. when I play back the track from DAW, at the x18 output, there is a "crack" and "digital distortion" in which the signal is slightly guessed. Increasing the buffer to the maximum (2048) does not change anything. Changing the Clock rate 44k1 or 48k does not change anything. Changing the USB Interface setup 18/18 ch or 2/2 ch does not change anything. Configuration: x18air, win7 (win10), driver 4.38, firmware 1.17, daw reaper, LAN & USB connection Sound examples (loopback) (WAV): - sent pink noise from one DAW track to the first x18air USB1 input (trim-18dB), - sent it to x18air on AUX, - AUX sent to USB2, recorded the second track in the DAW https://drive.google.com/open?id=1N55mrKNbW5W9207FBd4CTL7ImEqgRTWj Multitrack recording works fine. Suspected hardware malfunction Any thoughts?