$plaintext_pass is blank on new user registration email

I am having an issue that when i create a new user in WP the new user email doesn’t get sent because it is blank. In the pluggable.php i moved the $plaintext_pass so it gets constructed as part of the generated email to the admin. The email gets sent but $plaintext_pass is blank in the email. I believe it is not defined in the PHP either since the “if ( empty($plaintext_pass) )” fails.

How can i get an email to send that includes the username and password?