3826532 - Why there is a warning message/icon "Paper receipts are required for some expenses on this report." in the header but no warning sign in the expense entry?

I am creating my expense and I got a message "Paper receipts are required for some expenses on this report." in the header, but there is neither a sign nor a warning icon on which expense entry line. 


           
                Receipt Type: Original

           
               Receipt Type: Both

KBA , CON-CA-ADM , Administration , Problem