ADUA1772 confusion with SigmaStudio Inputs and Outputs.

Hello,

I am a bit confused with signal flow in my project. The signal source is audio from PC. Here is my signal route:

I created Schematic like that

I have heard sound only in my right earspeaker (this is what I expected), then I changed my Schematic to that:

I tought that I am going to hear sound only in left earspeaker but to my surpirse I have heard sound in both channels.

My audio inputs are directed to AIN0 and AIN1.

OUT0 is connected to DAC0 and OUT1 is connected to DAC1, is not each channel connected to one DAC ?