WPBP Split not considering while calculating salary

Hi Gurus,

I had an employee transfering to Postive time Location to Negative time location.

Eg : 01.12.2011 to 15.12.2011 in Positive time location

16.12.2011 to 31.12.2011 in Negative time Location. (Payroll Area is same)

When i transfered, and executed the Pt-60 and Payroll, system was giving the salary for only 15 days (+ve Time Pay) .

Can you guide me us what will be the possible reasons why it was not taking the split into consideration.

Best Regards,

Sree