what ? Live-mic via DAW ?
You didn't tell this before.
Can you make another screenshot from Totalmix where you click the hardware output 1/2 instead of the main-out ?
I gueass you are sending the Mic from Adat input directly there additional to the signal from the DAW.
The echo comes from the Adat input, you are sending this mic signal directly to the main-out additional to the DAW signal, this doubles the mic signal with delay, this makes echo.
Pull down the fader of Adat 4 fully for both outputs, main-out and output 1/2.
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