ColonelSchnitzel

Hello guys, Recently i have purchased the Hungarian Paint Jobs Pack, it works fine for me in MP,but other players said that they cant see the paintjob applied on my truck (they said that it has the stock orange paintjob) is it because they dont have that dlc or something else? Help would be appreciated, its kinda annoying to drive around in a cool looking truck and other players cant even see it properly because of this. Thanks in advance