apps.ap_inv_selection_critereia_all returns no rows

When I query ap.ap_inv_selection_criteria_all or ap.ap_inv_selection_criteria_all#, they both return rows.   When I query apps.ap_inv_selection_criteria_all, it returns no rows but it is a synonym based on ap.ap_inv_selection_criteria_all#. To get data back from the apps.ap_inv_selection_critieria_all, do you have to set the environment? If so, how?

I ran these three queries using the same value for &ppr_name:

select * from apps.AP_INV_SELECTION_CRITERIA_ALL where checkrun_name = '&ppr_name';  --this returns no rows

select * from ap.ap_inv_selection_criteria_all where checkrun_name = '&ppr_name';  -- this returns 1 row