I updated our dev environment to Version: 2.20.0, Build: 5.19.25.9.43-experimental and pulled in the latest data from live and everything looked good in testing except for one event which was not pulling in the event view template - test event 2 | Web Services Test Calendar Events | Georgetown University compared to test event 2 | Web Services Test Calendar Events | Georgetown University
I thought it might be because that one has an rsvp form so I copied one of the working events with a registration form that expired and reenabled it but that one works fine - Register: Test Event with media in it (a giant photo of a cat because that is how we vibe) | Web Services Test Calendar Events | Georgetown University
I then started removing all the fields in a copy of the bad event and nothing fixes it: test event 2 (manual copy) | Web Services Test Calendar Events | Georgetown University
Can you see any errors on your end?