It was at the end of the Federal Return during the Review process. The process kept popping up the forms and insisting I fill them out. When I went into the individual forms at View>Forms, the two wrong forms were listed. I highlighted each form in turn, then in the Forms Menu I selected the "Remove ..." option. After I removed the forms, I ran the Review process again and this time it finished without finding any errors. So technically the errors were those forms being generated by TurboTax for Mac.
I don't know why TTM generated those forms in the first place since I haven't had a W-2 since 2008 and NEVER had a brokerage account.
