I'm not sure is it a bug but it make me very mad. I haven't found that bug on so i wrote it. I use manual clutch and sometimes when I upshift it shifts to neutral. It usually happens when I press clutch too short. One more thing is when I press it too short car won't change the gear - i "respect" that and I know it isn't a bug but sometimes it change to neautral... it makes me very mad...