I'm subscribed to the US Holidays calendar via my iCloud account. I've never had a problem, but just noticed the US Holidays calendar is not showing on my iPad Air 2, though it shows up with no problem on my MBP and iPhone 6. The calendar is selected on the iPad. I've signed out and signed back in. I've quit the Calendar app on the iPad. I've unsubscribed and resubscribed to the calendar. Any ideas?