Oracle iProcurement Non-Catalog Request - Unit of Measure (UOM) Defaults to Dollars for Item/Line Ty

In Oracle iProcurement, the UOM for the Line Type of Goods or Services billed by amount is a required field which is set to Dollars.  The issue is that when another Item Type (Goods billed by quantity or Services billed by quantity) is selected for a Non-Catalog Request, the UOM defaults to Dollars.  I have attempted to resolve this issue by assigning a default UOM to both the Goods and Services Line Types under a Purchasing Super User responsibility and bouncing the Apache server, however, the UOM continues to default to dollars.  Has anyone else experienced this issue?  And if