Controller is not showing upcoming meetings

[CJMNZ]

One of our Zoom Rooms does not display any upcoming meetings on the controller (web and iPad).

Calendar Integration is set up and had been working fine up until now. Other rooms work fine. We use Office 365.

I have gone through the setup instructions and tested both App-level Impersonation and Full Delegate Access. Both work for the other rooms but not this one. 

Using the service account I can access the resource's mailbox and calendar using OWA without issue. I can add and remove meetings without error. 

The Calendar Integration page shows all as "Synced"

The room is on version 5.15.0(1273)

[CJMNZ · Accepted solution]

I followed instructions from Zoom.
I globally locked these as ON:

Zoom Admin -> Room Management -> Zoom Rooms -> Account Settings -> Meeting -> "Display meeting list on TV."
 Zoom Admin -> Room Management -> Zoom Rooms -> Account Settings -> Meeting -> "Display meeting list on controller"

(https://support.zoom.us/hc/en-us/articles/203847179-Setting-up-Zoom-Rooms-with-Office-365)

I then reauthorized our Zoom service account as "Full Delegate Access" and can now see the upcoming meetings.