He might feel neglected. Z4 doesn’t

He might feel neglected.
Z4 doesn’t accept being treated like a machine and doesn’t like to be reprimanded.
May I suggest that you try and discuss your relationship with him and build his self-esteem? Failing that, we would be happy to send one of our psychologists to talk to Z4 tot solve the problem.

Sincerely,
K3
Company Psychologist