Why Person Type ID is Same for All Empmloyees

Hi Folks,

In CoreHR, I have created 5 person types "Cat A -Full Time Employee", "Cat A- Part Time Employee", "Cat B-Contract Employee", "Cat B- Admin Employees", "Cat B- Fin Employees" and I have set default to "Cat A-Full Time Employee". Also, I set system name as "Employee" for all Employee Types I mentioned.

"Cat A -Full Time Employee" has PERSON_TYPE_ID as 1550. When I create new employee and select person type "Cat B", or any other person type except the default one  "Cat A -Full Time Employee". System is generating PERSON_TYPE_ID 1550 for all employee I am creating in CoreHR. I checked this in per_all_people_f.