It appears that you’re encountering a bug where pressing the ‘D’ key works, but pressing the ‘A’ key doesn’t have any response when the vehicle is completely stopped. However, the ‘A’ key works for moving forward or backward (while the ‘D’ key works fine). When the vehicle is at a complete stop and you press the ‘A’ key, there is no reaction. You’ve also mentioned that you receive the input value for the ‘A’ key through a print string, but there is no response.