FDI Data Visibility on dynamic filters drop-down menu

We have assigned security contexts to a specific role in order to limit the visibility cone to only some BUs. The problem is that the role correctly displays only the data relating to the BUs to which it has access, but in the dynamic filters drop-down menu it is still able to view the complete list of BUs and not just those to which it has access. Obviously, clicking on a BU does not enable the user to view any data, but we would like to limit the choice of BUs in the filter to allow for a more intuitive