Good evening. Before anything, I want to express how much I enjoy and appreciate your game. It is on my top favorites and I plan on playing it for many more years to come. Unfortunately I have just one issue so far. I managed to put this truck together in a matter of many hours and it was working fine, but as soon as I logged in the next day the truck started bouncing around and even going underground. Like I mentioned, I love this game to death and always will, but please attempt to fix this issue to the best of your abilities. Much obliged