Hi: I had the same problem and called TurboTax directly. I spoke with a representative, Sandra, who stayed with me until she figured it out. I only remember part of the solution. She opened up forms, then opened 1040/1040SR Wks. Once opened, you could see that the paid preparer's date was highlighted. She then deleted the form. I think that was it but not sure. I was then able to E-File my return. Hope this helps.
