Worked on stabilizing FMI-based Model Exchange simulations in the OpenModelica/OpenModelica repository, focusing on memory management and simulation modeling using C. Addressed a memory pool leak in directional derivative routines by implementing a save and restore wrapper around FMI callback invocations, ensuring temporary allocations were properly released. Aligned these changes with existing memory management patterns to maintain consistency across simulation routines. This work enhanced the reliability and scalability of long-running simulations, particularly for digital twin scenarios and implicit integrators, by reducing the risk of memory exhaustion. Demonstrated collaborative development practices through co-authored contributions and integration with related FMI path fixes.