Worked on enhancing keyboard interaction reliability within the eclipse-scout/scout.rt repository, focusing on front-end development using TypeScript. Addressed a nuanced issue where duplicate keystroke events were processed across shared tile grids, leading to multiple unintended selections in tile mode. The solution involved refining event propagation logic in the TableTileGridMediator so that keystrokes are handled only once when multiple grids share a bind target. This targeted bug fix improved the consistency and accessibility of keyboard-driven navigation in grid-based user interfaces. The work demonstrated attention to detail in UI event handling and contributed to a more robust and accessible front-end experience.