sys_user Reference Fields Empty in Service Portal Catalog Items

[Sofvrg]

In the variablesubject_person, the field is supposed to show a list of users according to the query defined in the script (see attachments). Normally, the reference field should display all users matching that logic.Instead, when opening the Catalog Item in the Service Portal:

• Portal users see no results at all — the list is empty.

• Even as admin, I cannot select any user from the reference field.

What I have verified so far:

ACLs on the sys_user table:

• I have created ACLs of type record read, query_range, query_match, and field read.

• Portal user roles were included;

• Despite this, the references on the portal continue to return “No results.”

Reference Qualifier

• I temporarily removed all script qualifiers.

• Even without a qualifier, the reference remains empty.

Reference Field Attributes

• I removed all attributes (ref_ac_columns, ref_auto_completer).

• No change: the lookup still returns nothing.

Additional attempt

• I also tried creating a new variable with a simple reference to sys_user.

• Even then, portal users cannot see any users, and as admin, I cannot select anything either. 

  One strange thing is that if I select a record, nothing actually appears in the field, but it still allows me to submit the ticket even though the field is mandatory. This reference was working correctly before, and now the issue appears without any modifications to the variables, scripts, or ACLs. What is causing this issue, and how can it be resolved?