Question / Help Audio is echo'ing on stream

[roro1506HD]

Hi! I'm having a audio problem, my audio is echo'ing on OBS. I only have one desktop source and one microphone source. Only the desktop source is echo'ing. And I do not have the stream opened in another window...

Here's the last logs I have from my tests : https://gist.github.com/anonymous/c92a0f05a79ae41d6ac76adb5a9ca086