Carry forward doesn't work as per expected

Hi All,

I have configured the carry forward as below:

The OpeningPeriod and OpeningYear are left blank. Means, system by default will copy from Dec last year data.

Script:

*RUN_PROGRAM COPYOPENING

  CATEGORY = %CATEGORY_SET%

  CURRENCY = %RPTCURRENCY_SET%

  TID_RA = %TIME_SET%

  ENTITY = %ENTITY_SET%

*ENDRUN_PROGRAM

Data before Carry forward:

Following selection during the data package execution:

The result is nothing is executed and nothing is displayed in the time 2007.01.

But if I put selection Time:2006.12, the system will have following result :

The question is:

Did I do something wrong or is this bug? because my understanding, when I enter 2007.01, system should copy CLOSING 2006.12 to OPENING 2007.01?

Thank you