Ensure you have all parts (part1, part2, etc.) in the same folder.
Version 1.46 is compatible with most Steam Workshop mods, though some older map mods may require updates. American.Truck.Simulator.v1.46.2.11s.part2.rar
Check the in-game version number in the bottom corner of the profile selection screen to ensure it matches 1.46.2.11s . Technical Notes Ensure you have all parts (part1, part2, etc