OK, so I am experimenting with streaming on a gaming laptop with an i7 8750H CPU and a GTX 1070 and when I capture the game video and audio (with the mic disabled) it sounds fine, but as soon as I enable the microphone the game audio will echo. I have a feeling it has to do with the onboard audio solution and unfortunately it doesn't have enough editable options to help troubleshoot this problem.
I have ordered a USB sound card to see if that will resolve the issue.
I have ordered a USB sound card to see if that will resolve the issue.