Hello,
I am a newbie too, I faced the same problem (with or without AudioFuse connected to my computer).
I found the solution :
In the "Direct Monitoring Mix" section of AudioFuse Control Center software, move the "Pan" knob of Input 1 to completely to the left and the "Pan" knob of Input 2 to completely to the right.
Pan knob is the circle knob at the top of input 1, 2, 3, 4.... sections.
Do the same for Input 3 and 4, if you need to record them in stereo too.
Denony