Calendar Resources Disconnected

[bilg]

Starting on Tuesday the Calendar Resources disconnected from all of our Zoom Rooms. Each calendar states "This calendar resource is no longer available in the calendar service." Does anyone know if there was a recent change that may have triggered this? We use Microsoft 365 for our email and calendars. 

[mmartinko]

Any updates on this? I'm seeing the exact same issue for a new calendar.

[zoomer_tom]

I have over 300 Zoom Rooms that have calendars linked to them, none of them have unlinked. However, I tried to link a calendar with a new room today but it didn't link.