Solution: This is usually a memory overload. The heavy cargo models are high-poly. Reduce your graphics settings (especially “Mirror Quality” and “Shadow Detail”). Also, add -mm_pool_size 2048 to your launch options.
If you landed on this article using the specific keyword, you are probably aware that Ocean of Games is a repository for repacked games. Why do players specifically target OOG for Euro Truck Simulator 2? ocean of games euro truck simulator 2 heavy cargo
Solution: This is a known bug in repacked versions below v1.44. You cannot fix it without updating. Search for a “Special Transport Fix” mod on forums like Skymods or ETS2.lt. Solution: This is usually a memory overload