After updated today, 04/29/2020, Turbotax Home and Business asked for activation code again. After I entered its license code I encountered error message. I used to put a USB flash drive while working, I noticed I did not put that USB flash drive today so I inserted that USB drive, and surprisingly TurboTax worked again.
Something very wrong with 2019 TurboTax. It should not be influenced by an external USB drive.
