Just got off the phone with support, who very quickly figured out what was wrong ... Tennessee does not require a tax return filed if your income was non-taxable (i.e., my pension), and/or you have interest or dividends earned. In prior years, the interest and dividend income was taxable but that ended starting at January 1, 2021.
Now, it would have saved me 4 phone calls to support and a lot of de-install/reboot/re-installs of TurboTax if the TurboTax product was smart enough to say: Hey, you don't have to file a return with Tennessee. Seems like that should be a priority to get fixed, because there are a LOT of folks in my situation in Tennessee.
