Subscribed to Change Calendar in Outlook but no work items etc are showing.

[Judy Forrister]

I followed the instructions here https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsupport.atlassian.com%2Fjira-service-management-cloud%2Fdocs%2Fsubscribe-to-change-calendar-from-your-external-calendar%2F&data=05%7C02%7Cjudy.forrister%40giacom.com%7C2385b7ab739f4097fae608ddec54c2b6%7C2f0e80a680a94c928401b2711c15efdc%7C0%7C0%7C638926570988335729%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=Gdey31CpB3r%2Fhj9rmqbefSXoOCDwA4E...

to try to get the change calendar to show up in my Outlook calendars.  The ability to share the calendar with non JSM agents is quite key for us.

Unfortunately, while I can select the calendar, it is showing no work items, maintenance windows, freezes - nothing at all.
I've tried restarting Outlook etc.  Any ideas what to try next?