ATEM mini Pro and Zoom audio issues (music)

Help! I'm supposed to do a music performance tomorrow and the audio is a mess. When I listen to the audio from the ATEM via my TV monitor (there's no headphone jack on my ATEM, of course), it sounds great. When I listen to the Zoom recording, however, you hear my voice fine but the music from my kalimba is getting filtered out, presumably in Zoom or Windows audio processing.

I have tried "original sound" and "live performance audio" in Zoom to no avail. I've also overridden/bypasses all processing I can find.

Here's my set up:

Rode condenser mic and Shure wireless headset on channels 1 and 2 of a Mackie 4-channel mixer. Audio out from mixer going to Mic 1 & 2 on ATEM (camera audio muted).

The ATEM is plugged in as web cam into a Windows 10 laptop.

Let me know if there's something else you'd like to know.

THANKS!

Well, I think I've figured it out. You can set "original audio" in the settings but, when you start the meeting, it appears you have to choose it again. If you look at the top edge of the Zoom window, it may say "original audio" not enabled (paraphrasing). Click on that to activate/enable it and all is well in the world. Well, mostly, it's still not great but it's much MUCH better now.

I'll leave this post up for others who may be encountering the same issue but I don't need a reply.