There are 2 different user/password pairs that you have to use when installing and starting octoprint. One is the password you use for sshing into the pi, factory default is pi/raspberry. You get prompted to change the password when octopi runs.
The other one is your username and password when running OctoPrint. You're asked to set this when OctoPrint runs the first time (first time setup wizard).
Those two accounts are completly separate, one is a user account on the OS level, the other a user account of an application.If you installed a desktop environment onto your pi (unusual but still possible) ou would log into it as pi/raspberry
did you actually install a desktop? Or do you mean the OctoPrint web side? Because there it is a different password and account which you were prompted to create on first run
I type in the default user and pass (which I haven’t changed) and it takes me to command line and shows me a small blinking line and then it goes back to the login.