Content Share only playing Voice audio and "Echo Cancelling" Music

I am an AV integrator and we have deployed a Zoom Room system for a client.  We are experiencing a weird issue when content sharing.  The topology is as follows: Clickshare device (or computer if you will) to a Magewell HDMI to USB capture device.  USB from that device to a Zoom Rooms PC.  This delivers the content source to zoom rooms to share.

When we go to youtube and play a video, the ad plays audio perfectly fine (since it is voice audio).  When it plays anything with music, it allows the voice to play but cancels out the music in the background.  We haven't been able to track down what is the cause.