I had the same issue and this manual update worked for me on the first try. I closed TT - installed the 184 MB update file located at the link below.
https://ttlc.intuit.com/community/updating/help/manually-update-turbotax-for-windows-soft[product ke...
I then retarted TT and tried filing again. It worked first time for both federal and state tax returns. I am using 2019 Premier software - Individual return. Windows 10.
