I attended a meeting last night with many people muted. When it came time for homeowners to speak, we were individually called On. Two of the most outspoken people against the board were called onto to speak, but they were unable to unmute themselves. Both of them are very techy and at one point, they one of them was unable to unmute and all of a sudden she muted again, not without touching anything herself so my question is is it possible for the host to block an individual from speaking even after they tell them to speak?  Can it be done permanently or would the host simply mute them again after they have unmuted?  Thank you for your help.

 We just did a Zoom meeting and recorded it.  This is the first time that we have a small visual within a large black frame.  I did not intentionally (and I don't believe accidentally) changed the settings.  Perhaps Zoom in an upgrade made an adjustment.  In any event, would you know if it is possible to enlarge a past recording?  And, how do we avoid this in future?  Thank you.