Java Swing applications may face intermittent block movement due to issues with key event handling and focus management.
Common pitfalls include problems with Window Focus, KeyListener Implementation, and Game Refresh Rate.
To fix key input issues, ensure JPanel has focus, improve KeyListener logic, and optimize the game loop for more responsive handling.
By following the recommended solutions, such as requesting focus for JPanel, correctly tracking key presses, and adjusting the game loop, developers can address block movement inconsistencies in Java Swing applications.