UI Sync Issue: Sidebar and Navigation Buttons not updating with Page Content

I am experiencing a routing issue within the open-source courses. While navigating through units, the UI components fail to sync with the current page display: Sidebar State: The sidebar does not highlight or update to the active unit being viewed. Navigation Buttons: The "Next" and "Previous" buttons at the bottom of the page do not reflect the current unit's context, making it impossible to progress correctly through the course. Expected Behavior: The sidebar should highlight the current unit, and navigation buttons should correctly link to the subsequent/preceding lessons based on the page currently displayed.