Summary

After the server-to-cloud migration of Team Calendars using CCMA (3.9.0+), any calendars that connect to Jira will display an error message "Unable to load events of *":

This is because the calendar uses the Confluence → Jira application link and will need to be updated.

Ideal Solution

There should be a way to update the Team Calendar application links as a part of the Jira Macro Repair or Link fixing service after migration.

Workaround

Fix this message by updating the application link in the UI.

1. Edit the Calendar
2. Choose a new, valid Server from the dropdown
3. Click Save

To fix this in bulk (for many calendars), contact Atlassian Support for a workaround during business hours.