Hello Akif,
I tested in my system and it seems grouping by colours does not work right in PK13N, the SAP note 2276173 - PK13N : Incorrect grouping of control cycles should be applied for it to work.
I believe you should apply the SAP note 2276173 via SNOTE and then check. The SAP note is applicable to pretty much all SAP EHP versions upto EHP 8.
Hope this helps.
Best Regards,
Ameya Beri