new-mailboximportrequest resets sharing permissions

The New-MailboxImportRequest seems to reset the sharing permissions on user accounts. I imported a .PST with calendar events of official staff holidays to our users, and all the users lost their sharing permissions, at least on their calendar.Get-MailboxFolderPermission -Identity user.name:\calendar * shows that another user has access {AvailabilityOnly} *New-MailboxImportRequest -Mailbox "user.name" -FilePath \\ex01\PSTs\holidays.pst -IncludeFolders "#Calendar#" * runs successfully *Get-Mai