Trying to subscribe to a calendar doesn't generate the necessary link (the field is blank)
- Create or go to an existing calendar
- Click the 3 dots after the name of the calendar on the right and select the "Subscribe" option
A link should be generated and displayed in the field
The field is blank
If possible, go to Team Calendars' Global Settings and select the "Disable Private URLs" check box then try to subscribe to it again.