Designing navigation menus can present common challenges, such as mobile compatibility issues, broken keyboard navigation, and dropdown malfunctions, which even experienced developers face. These issues can be addressed efficiently using CSS techniques, enhancing usability and accessibility without relying heavily on JavaScript. Key errors include not adding delays to dropdowns, overusing absolute positioning without constraints, relying solely on hover for interactions, creating small target areas, hiding dropdowns with display: none, poor stacking context management, and failing to adapt menus to various viewports. By applying strategies such as CSS transitions, proper positioning contexts, keyboard and touch-friendly designs, adequate target sizing, visibility manipulation instead of display:none, and responsive design practices, developers can create more effective and user-friendly navigation menus. Additionally, tools like LogRocket offer advanced monitoring solutions to debug and improve the frontend experience by capturing user interactions, errors, and performance metrics.