Power shell to create a shared mailbox cannot display any name in full access box

I used the following command to create a sharedmailbox.

New-Mailbox -Shared -Name "unclewang" -DisplayName "unclewang" -Alias unclewang | Set-Mailbox -GrantSendOnBehalfTo lin.wang | Add-MailboxPermission -User lin.wang -AccessRights FullAccess -InheritanceType All 

It is created,but the full access box of shared mailbox cannot display any name .

Is there something missing in the command ?