login password not accepted as a sodo password

[BluTho]

Hi again,

furthermore, the login after screen lock does not accept the password.
In case i choose "change user" after screen lock, i see the same login screen as for boot login but the password is not accepted.
By a reboot i can login with the password!
Very strange.

By the way, I can not change password without knowing the old one.

Regards BluTho