[OS X]Capture audio with iShowU Audio Capture

This thing works great! except FACETIME! can't hear the person talking. I am able to hear the call ring and the Facetime "incoming call" audio message.

My Audio output options are:
* Internal Speakers
* Bose Headphones Bluetooth
* a TV connected using HDMI, where I can redirect the audio too.
* iShowU Audio Capture
* Multi-Output Device

I ran a test using MS teams and Zoom, and I was able to switch in between all the output options available and heard the incoming messages.

When I am in a Facetime audio or video call, people CAN hear me but I CAN'T hear them. I am able to switch in between outputs, and nothing! what could be wrong?

Any ideas? suggestions? tips?

Configuration:
OBS Studio 26.0.2 (64 bit)
macOS Big Sur 11.0.1
MacBook Pro, 16Ram, 2.8 Ghz Quad-Core i7

Thank you! hoping for help.

good job