Search-Mailbox does not delete email from certain Mailboxes

Hello All,

Trying to delete some spam emails.

The search-mailbox command works but there are certain mailboxes that the emails do not get deleted.

And it seems to be the same ones over and over again.

When I review the search result, it reports back as a success. And when you view the sources the mailbox with issue is listed here but the spam email is still there.

Thanks