I have shortened the payer names to 14 characters on both 1099-DIV and 1099-INT. I have also tried the cursor trick for the name suffix. I am still getting this blasted error.
Since it's likely that you imported the data, check for other instances where a worksheet or form still has the name with more than 15 characters.
If the IRS form 1099-DIV was imported and the name error persists, consider removing the entry and re-entering the information by hand.
Remove the entry by clicking the delete trashcan.
In TurboTax Online, report the dividend income as follows: