Participant List disappeared

I had my iMac hooked to a TV (as a 2nd monitor) and hosted a Zoom meeting. There were about 45 participants. At one point the participant list just disappeared and I had no idea how to get it back. Is this some kind of glitch? There wasn’t an option to show the list again.

Mac OS X 10.15.6 with the latest version of Zoom (desktop client).