I had the exact same problem. I had exact same problem and report to support. The work-around would be to:
1) Select "File"
2) Select "Print"
3) Select the "All official forms required for filing" button
4) Select "Save as a PDF" button
5) Open the resulting PDF file.
6) The first page may be any additional filing instructions for your Federal Form. (This may not be there for 2019 because of the new attachment of signed Form 8453-PE). If your form has no instructions then you're done with Federal.
7) Further into the resultant PDF, will be additional filing instructions for your state, which may or may not include mailing in your return (depending on your state).
