Released: February 2023 Exchange Server Security Updates

After installing this update on Exchange 2016, the RestAPI for accessing calendars stopped working - a request like

https://mail.mygreatcompany.com/api/v2.0/users/email address removed for privacy reasons/calendarview?startDateTime=2023-02-16T21:00:00&endDateTime=2023-02-17T20:59:59&$select=Start,End

returns an error:

{"error":{"code":"ErrorMailboxStoreUnavailable","message":"The mailbox database is temporarily unavailable. REST APIs for this mailbox are currently in preview. You can find more information about the preview REST APIs at https://dev.outlook.com/."}}

is it worth returning the database to an un-updated server everything is working again as before.

This is the expected behavior?

P.S. I do not observe the discussed problem with EWS on my environment