on one web site with (WP 3.71 - membership Premium 3.4.6)I

hi
on one web site with (WP 3.71 - membership Premium 3.4.6)I have 2 super admin, but only one receive the membership notification by email for new membership subscription.

on another web site with(WP 3.3.2 - membership Premium 2.1.4) I have 2 super admin and it's OK.
On this membership version there is a option "Membership Administration : This user has access to administer the Membership system." on the profil user.

Where is this option on the membership Premium 3.4.6 ? Is the problem comes from this missing option ?

Thank's