This incident has been resolved.

We have confirmation that cache has been cleared globally and the issue has been resolved. We'll continue to monitor the fix.

Microsoft made a change in the scheduler APIs that was deployed late last week which inadvertently impacted scheduling CVI (Cloud Video Interop) meetings through Outlook to a small subset of customers in North America. The fix is being rolled out now and they estimate completion in less than one hour.

A subset of entitled customers are reporting CVI coordinates missing from teams invitations when scheduling through Microsoft outlook 2016.
Workaround: Scheduling through the Microsoft Teams application does provide CVI coordinates.
We are currently working with Microsoft to investigate the issue.