Display dependent reference field based on selection in Service Portal

[Hari7]

We have 3 variables created in a Record Producer. 

1. "Service" - Reference Field - Table: cmdb_ci-service - Map to Field (Yes) - Mapped to Business Service field. 

2. "Category" - Reference Field - Table: sys_choice - Map to Field (Yes) - Mapped to Category field on an extended table of sn_customerservice_case. Dependent on Service Field

3. "SubCategory" - Lookup Select Field - Table: sys_choice - Map to Field (Yes) - Mapped to Sub Category field on an extended table of sn_customerservice_case. Dependent on Category Field

Used Reference Qualifier for Category and it works fine. Displays the value based on service selection.

Used the same logic for sub-category but no value is showing up. If I remove the Reference Qualifier then everything in the table shows up.

Please let me know what needs to be done here to show the subcategory value. 

Category Variable:

SubCategory Variable:

Service Portal:

Choice (sys_choice table) List Values:

[Hari7]

Thats fine Ankur. This is what made me clueless on how one is working and how the other one is not working where they both share the same code logic. 

Anyways thanks for your support. I will close this case.