Participants Not Being Displayed on Screen

We have several participants who cannot see other meeting members when those people's video is not being shared.  This is something that has been going on for about 3 weeks, presumably from one of the more recent updates.  Why can we no longer see who is in the meeting (with a silhouette and name) if someone stops their video?  How can we fix this?  It happens both on ipad and laptop.  Sometimes you need to turn off your video, but you should still appear in the meeting.