Account, Product, and Asset LOVs returning no records in Create SR (Fusion Service)

The Account, Product, and Asset LOVs are returning no records when creating a Service Request (via Service Center). 

Setup: Accounts exist and are Active. Service Logistics Opt-ins are enabled. 
User Access: Super User with standard service roles. 
Customizations: None (no Visual Builder extensions used).
Profile Option: Set ⁠HZ_DEFAULT_BU_CRM⁠ at Site Level.
Steps to Reproduce:
Navigate to Service Center > Create Service Request > Click on Account, Product, or Asset search fields. All return empty lists. 
Is there a specific ESS job (like ingest search indexes) or specific data security role required to render these LOVs?