Two example situations where re-sending the same email template can be necessary:
1. - Resend no opened: to resend the same email in a child activity if the first email was not opened after a period of time
2. Resumption: The contact receives the email and after a while falls into the workflow again.
In both situations the sending is cancelled with the error: Canceled -> Failure type -> Duplicated Email.

Would it be possible to solve this through participants states (running-completed-removed) or some other workaround?

Thanks