I can confirm with an Iowa return, that it wound up being the Dividend worksheets. I changed my 'Charles Schwab Co & Inc' and 'Vanguard Marketing Company Fiduciary Company' down to 'Schwab' and 'Vanguard.' It went through no problem after that change. Bizarre that it looks like it has to do with the Suffix portion of your name, but it's really some totally different worksheet.
