What does the message "Some items are hidden from view" mean?

Sometimes you may see the following message in the Admin Calendar:

Some items are hidden from view. Use Calendar settings (gear icon) to switch to Midnight-Midnight display.

This is because with the current calendar display setting, some items aren’t being shown.

To view the items that are hidden:

1. In the admin calendar make sure you are in week (or day) view
2. Click the gear icon on the right
3. Set the day display range to “midnight-midnight”
4. Click “Save”

This will show the full calendar from midnight to midnight.

You will see be able to see the items that are hidden.