Data Model and Knowledge Model Are Configured Correctly, but Studio KPIs and Views Return No Data Despite Successful Data Loading

During the implementation of a process analytics solution, I encountered a complex issue where the underlying data was successfully loaded, modeled, and linked through the required relationships, yet the analytical layer was unable to retrieve or display the data correctly. Despite verifying the data pipeline, model configuration, identifiers, relationships, and query logic, the visualization layer continued to return empty results. Resolving the issue required a systematic investigation across multiple platform components, extensive documentation review, and careful validation of each stage to isolate the root cause rather than relying on trial-and-error fixes.