Cannot see domain tree or organisation unit

Dears,

I'm new in this great world and facing my first issue.

Situation 100

ADMINZO part of group security GS_SEC_BEI ,this group has delegation on two active directory Units Beijing and HongKong  , the problem when he connect to web console, he has access and see all the

domain OUs : No Good, he must ont have acces to wo OUs ; Beijing and HongKong

ADMINCOH  part of group security GS_SEC_NYC, the groupe has delegation on OU NewYork,  : When conneted to Web console, Not is showing ( No Oranisation UNis) ...

 bot group have Browse domain

thx for you help