This seems to be a common problem this year, and the support folks don't get it yet, or certainly there is no solution, except to send you a standalone state download.
There are about a half dozen forum posts, or more, with this same problem.
I went through about a week dealing with the social media support folks (I wasn't around with my PC to phone in). I forceably uninstalled and reinstalled about 3 times.
What you have to do -- and it is annoying because you have to be by your computer during support business hours -- call turbotax support, and they will screenshare with you, and you show them that it is stuck.
Explain politely that you've reinstalled, and tried going through the loop many times, and isn't there any way they can just provide a standalone download of the state. It took a few minutes of clickity clicking, but then the download was available under "My downloads" section of intuit.com. The download took about 10 seconds, and installed in under a minute, and then I was able to continue with my return.
In my case, I noted that there was an error listed in
C:\Users\[YOUR USERNAME]\AppData\Roaming\Intuit\TurboTax\TY19\ErrorLog\TTWin.A5830904-[somedate].log
though the support folks didn't seem that interested in the actual error log that could be used to diagnose and fix the problem for real -- so for now, you just have to call support, and get the standalone.
