Problems logging into runlevel3

Leap15 x64, have just noticed I don’t seem to be able to login to runlevel3.
eg If I boot my PC, arrives at the GUI login, pressing Ctl-Alt-F1, takes me to a login prompt. Type in my name, press enter, and it falls through to “Login incorrect” message, without stopping at the password prompt. The password prompt DOES appear (twice), but just falls through to the next line, without waiting for input…
eg appears on screen:

Welcome to opensuse etc....

PC login: john

Login incorrect

The only input by me is: john<enter>


Thanks for that!
Sorry, thought I had searched, but obviously missed it…