Purchase Order Tracker not displaying PODetail.CostPerCode

We've upgraded from Vista 8.03.403 to 8.03.410. Both Purchase Order Entry and Tracker use the base customization. In Entry, the data for PODetail.CostPerCode is displayed (dropdown box to the right of Lines > Detail > Unit Price). In Tracker, it's blank. This happens for every PO, the data's fine but the tracker's not showing that field. Is this a known bug? Is there a workaround?

-- Kye