Auto-entered values will only be entered when a new record is created. If you define a new auto-enter expression on a global field, no values will appear in that field until a new record is created.
You might instead define this calculation field:
List ( 8 ; 7 ; 6 ; 5 ; 4 ; 3 ; 2 ; 1 )
As a field of type calculation rather than an auto-enter setting, the value will appear immediately and no new record need be created.
Thanks! I also got it to work by setting the field equal to itself when the layout loaded.