Thanks for your reply.
"using a different method like check or expense" is not necessary as the problem vendors were not paid with debit, credit, or gift cards or PayPal as noted in the original question.
Also noted in the original question is that the accounts used for 1099 reporting match the accounts used on the vendor bills.
I did open a Chrome browser, cleared history for all time.
After that, I opened an Chrome incognito window, and went into the Expenditures > Vendors, clicked on "Prepare 1099s", went to step 4 and the example vendor is not in the list "1099 contractors that meet threshold" (which they do), nor are they in the list "1099 contractors below threshold", nor are they on the "Contractors not marked for 1099" list.
