Hi,
After contacting TT support, the issue was then sent to TT Escalation Team.
After around 12 hours, I tried again to start my TT "download basic 2020" software, and the software automatically prompted me to start a manual update, which I did. After 7 minutes, the software was updated successfully. Then I was able to file my federal taxes successfully.
Hope this info help other users to overcome this issue.
Thanks
