Business Unit LOV not displaying any values while creating Marketing event

Hi,

We are currently upgrading from 11.5.10.2 to R12. in 11i instances I can see the values in Business Unit LOV but In new R12 instance it is not having  any values. Have verified the below SQL in R12 instance and am getting the values.

select business_group_id, organization_id, name, date_from, date_to
from hr_all_organization_units where  type = 'BU'
order by 2;

Any help would highly appreciated. Thanks.