June 2026 monthly summary focusing on key accomplishments across gridsuite/network-map-server, gridsuite/commons-ui, and gridsuite/gridstudy-app. Delivered features that improve data fidelity, reliability, and user experience, while enhancing monitoring and error handling for complex workflows. Key features and reliability improvements include topology-aware fictitious injections in the bus information model, busbar section sorting with data structure refactor, robust error handling and user notifications for security analysis fetches, divergence handling in state estimation, and immediate feedback via snackbar notifications for node data fetch issues. Result: clearer test data generation, more deterministic UI behavior, faster issue diagnosis, and greater operator confidence in system robustness.