when integrating PeopleSoft Absence Management with PeopleSoft Time and Labor, the TL_ABS_GENPT fail

Colleagues - our client is integrating PeopleSoft Absence Management v9.2 with PeopleSoft Time and Labor v9.2.  Frequently, when the following set of Absence calc processes run:     8501062 - GP_PAYBEFORE Success

   8501063 - GPPDPRUN Success

   8501064 - GP_PAYAFTER Success
they kick off the TL_ABS_GENPT
This process goes to "No success" about one run in three. 
A typical error would relate to a missing AE section or a time period calendar relating to a TL rule which has not been in any active rule program or workgroup in quite a while.  Question is why does the TL_ABS_GENPT try to validate these old rules when TL_TIMEADMIN does not.  Is there any a selection process in AM before the calc is triggered which can stop the ABsence calc and TL_ABS_GENPT from going back in history and validate old rules?