The potentiometer part number is the same for Maserati or Ferrari, it’s the same Graziano gearbox assembly. Not sure why Migliore would stress over that.
Anyway, post removed.
Here’s the update on the R error message when cold
https://www.sportsmaserati.com/index.php?threads/mc-shift-not-selecting-r-when-cold.38324/#post-1019914