During April 2025, Michael Stargardt focused on enhancing data preprocessing and error handling within the FZJ-IEK3-VSA/FINE repository. He addressed a critical bug by implementing robust routines in Python and Pandas to automatically fill NaN values in input matrices with zeros, while emitting targeted warnings to improve diagnostics. His approach included adapting validation checks for cases where diagonal elements were non-zero, thereby increasing the reliability of transmission component integration with esM. This work improved the system’s resilience against silent failures and reduced debugging time, reflecting a thoughtful, detail-oriented approach to data quality and maintainability in scientific software pipelines.