Question / Help OBS studio backround audio sound listen to clip

[NightWolfPack]

I have this feedback only when OBS studio is open. Any ideas to correct? Again it is only there when using OBS and no other program at this point.

https://youtu.be/f4ui2SkoHfI

Baringer Q902USB mixer
Sennheiser ME66 mic
all shielded cabling
all power is line conditioned

Thank You in advance

Nightwolfpack

https://gist.github.com/8df647af2340de985aa76604fae1b8aa

 

[NightWolfPack]

Any feedback?