This is in the inbox, where you have someone’s message open who has a completed order from you.
In the upper right where it shows that they have an order, after I deliver the order on time it has a little red clock saying it’s late. Also on the order page it does not close out for further messages after I deliver an order. Usually I can’t send more message on the order page after I deliver it but now it stays open for more messages, as if it has not been delivered. It does not say late however on the order page.