Restore: Incremental Net New Mailboxes Restored as part of Previous Backup Run

Users who have backed up i.e two mailboxes can restore those specific mailboxes from the associated restore point. If the user adds a third mailbox to an existing backup configuration without running a new backup to create a new restore point that includes the additional mailbox, the third mailbox may appear in the list of available items for restore, despite not being backed up yet. We are actively working on resolving these issues in an upcoming release.