Why do some tracks in DRF have program numbers in the Past Performances while others do not?

DRF publishes digital PPs in both Early (pre-draw) and Final (post-draw) versions.  When the PPs update from Early to Final, the post positions and morning line odds will become available to view. 

You will not be charged or debited twice if you first select a PP in its Early version, and then reselect it when it becomes Final.