Scania T RJL “Coca-Cola Christmas” Skin 1.39

BatZie says:

I can’t seem to get this to work with RJL Scania T & T4 Mod v2.3.0 1.39 from Steam workshop . I have the skin installed in my mod folder and can see in in available mods. But when I select the truvk in game I cannot see this paintjob. What am I doing wrong?