For Michigan, it might not be TT's fault.
According to Michigan.gov, e-file is not supported on Schedule W.
https://www.michigan.gov/taxes/0,4676,7-238-75545_43715-178350--,00.html
The above webpage does not indicate it is up-to-date for 2020. In 2019, I e-filed Michigan Schedule W without issue with TurboTax.
Could any TurboTax employee confirm this is a state government issue, but not software?
