I upgraded from 2.2.2 to 2.2.3 and then my login form disappeared. I checked that I have $Form in my /layout/Page.ss and $Layout in my Page.ss template. That should be ok.
If I put $Form also template Page.ss (now I actually have two $Forms ) it also renders two login forms. If I delete either one, login form disappears.
I also tried Security_login.ss but that was not solution.
So I have no login form or two forms.
What could be wrong?