M365 Calendar for "People's Calendars"

I see several threads on M365 calendars but don’t see much progress. So I’m trying to bring this to someone’s attention so we can get it fixed

I add a user’s calendar to my calendar view in OWA. The name of that user then shows up in em Client, however when I select that user’c calendar I get an error (red triangle) upon syncing.

The error reads:

[Microsoft Graph] Synchronizing folder ‘Environ/People’s Calendars/[Calendar Name]’ failed due to the following error: The specified object was not found in the store.

I’m also not seeing the other users’ calendars in the mobile app.

Please help.