Worked on the prettier/angular-html-parser repository to address animation lifecycle issues in dynamic Angular components. Focused on stabilizing leave animations by refining how sibling instances sharing a TNode are tracked, ensuring that animations complete before DOM elements are removed. Used TypeScript and front end development skills to differentiate between distinct template instances and logical view re-renders, preventing premature DOM removal and visual glitches. The solution maintained existing overlay deduplication and drag-and-drop rescue logic, avoiding regressions in related features. This work improved user experience in components such as accordions and navigation menus by delivering smoother transitions and more stable dynamic interfaces.