Yifan Chen focused on enhancing the reliability of the Event Display Module within the DUNE/ndlar_flow repository, addressing a critical bug affecting TPC plotting and cathode plane coordinate accuracy. Using Python and leveraging skills in data visualization and scientific computing, Yifan revised the plotting logic to use geo_version parameters, ensured TPC center coordinates were passed as single-element lists, and corrected the x-coordinate calculation for cathode planes. This targeted debugging improved the consistency and accuracy of downstream analyses by preventing plotting errors and misrendering. The work demonstrated careful attention to parameter integrity and data type validation, contributing to robust scientific workflows.