Host being booted out of meeting

[SManry]

I've been using Zoom for more than two years now and have had this happen many times.  I teach use of a machine that requires multiple views.  I have two cameras and a Windows 8 tablet attached to an Atem BlackMagic switcher.  Lately, when I switch inputs, Zoom freezes and kicks me out.  Is there some rule about input numbers, or is there some setting that can be changed?  I can't afford for Zoom to boot me out of my classroom.