I found a piece of untextured land with ores on it. Since I needed the oil on it, I continued to drive over it with my truck. But after driving over it, my truck tipped and flipped over the "edge". Over the edge is water and I cant do anything until I'm out of this "water". I managed to get back onto the surface using the truck, but the truck itself it wedged between the map. Creatures chasing me also get stuck in this bug, which make me unable to kill them, while they can still kill me.