Zoom no longer works on Amazon Fire 8 HD 10th gen

I bought the tablet in Feb of 2021.  It has worked with Zoom until a couple months ago.  My audio and video comes through out of sync on Zoom, but when I use Skype my audio and video is fine.  I even factory reset my tablet, updated it, and redownloaded Zoom to no avail.  My brother is on an 8th gen Fire 8 and Zoom still works for him.