Zoom Events Expo Livestream

We have been running events in the expo for a couple of years now, where exhibitors are using the live stream option to showcase to attendees that their expo booth is alive and ready to join.  In the last few events, attendees who leave that expo booth, but then return at a later time do not see the livestream again - they only see the "space is active" logo.  In contrast an attendee that sits in the booth will continue to see the livestream.  Turning off the live stream and reactivating it will refresh for anyone in the booth, but again the same problem will arise if an attendee leaves and then rejoins the booth it will just show the "space is active" logo.

This was not a problem prior to a month ago, so trying to understand if a setting has changed with a release?