In December 2024, Ivan Goncharov focused on improving the stability and reliability of the ros2/rviz repository by addressing a critical issue in the EffortDisplay plugin. He resolved a bug where JointState messages with empty frame_ids were being dropped, which affected visualization reliability for users. By refactoring the display class from MessageFilterDisplay to RosTopicDisplay and leveraging type-erased signal/slot mechanisms, Ivan ensured that messages were processed on the main thread, resulting in more dependable UI updates. His work, using C++, ROS, and RViz plugin development skills, enhanced maintainability and reduced user-reported issues without requiring changes to the public API.