During March 2025, Ruben Shan focused on improving user interface stability in the musescore/MuseScore repository by addressing a persistent issue with radio button toggling and visual inconsistencies. He analyzed the UI logic and applied targeted fixes using C++ and the Qt framework, refining background color alignment and element positioning to ensure predictable behavior and reduce accidental toggles. Ruben linked his changes to documented issues, enhancing traceability and maintainability. He also conducted regression testing across themes and layouts to confirm stability. This work demonstrated depth in UI debugging and bug fixing, contributing to a smoother and more reliable user experience.