I’ve raised one male Cane Corso, and he was always a joy to have around - well socialized, well trained, and very trustworthy, with other people and with other dogs. He used to run the courses in dog agility fun meets, which was a sight to see. He never won, but he would always draw a crowd.
Then I raised a female Cane Corso. I tried to treat her, and train her, and socialize her in the same way as I did with the male, but the female was always just “off”. She was was never really comfortable with people outside the immediate family. She loved the big male Cane Corso for the few years I had them at the same time, but she barely tolerated other dogs. I was sad when she finally died, but I don’t know that I’ll get another Cane Corso, since I don’t know what I did wrong with her.