When I try to zoom my son's piano lesson with his instructor, the piano music is totally disappeared in zoom.

Only voice is audible. I did a microphone test in zoom. Only voice was recorded and nothing else. I also played with the audio setting such as original sound but nothing changed.

So why is zoom only allowed voice and nothing else?  I wonder because I'm on a basic account.

Thanks

I tried to start my own meeting today and got caught in a vicious cycle. The system told me to update the software, but when I complied, I got an error message and was asked to "retry." I did this repeatedly with no success. I tried to log in manually with my email and password, same result. I tried using my meeting ID and pass code. I was always returned to the vicious cycle of trying to update and being told to retry, with no success. I rebooted my computer, but it did nothing. I cancelled the meeting, created a new one, same result. A colleague created a meeting and invited me to join, same result. It feels like I'm in an episode of The Twilight Zone. Any clues?

I host a weekly Zoom meeting with about 20 attendees on Zoom and 60 present in a classroom. I have these meetings scheduled but I need coverage for being out by one of the attendees to host the class occasionally.

I am the owner and the only one with the account and when I try to set up a co-host it does not seem to work. I have read other posts where I have to add people to the account to be able to do this, and others that I have to have a PRO account, but I have just the basic license since this is a volunteer non-profit endeavor. Any help you be appreciated.

Thank you in Advance