Upgraded Pi4 to 1.0.3 and password doesn't work

Hi - I went through the whole 1.0.0 upgrade debacle; when I first booted I was required to create a new account, so I used the exact same password as I’d been using prior to the upgrade. After seeing that none of my apps were there I looked for and found the then latest upgrade to 1.0.3. Installed and now…

My Pi4 (8gb) shows the welcome back page asking for my password. No problem because I made sure that my password was exactly the same as the one I’d been using for years.

Invalid password.

What else do you recommend I do?