So I bought Black Ops 1 from Steam so I could do modding for it and after, I got the DLCs as well. But for some reason I keep getting errors about the DLC perks and their models/images. For example, when I add PhD in Radiant, the perk machine model is not there, but I can still buy it and the perk shader is just the default checkered texture. What do I need to do to get the game to recognise that I have the models for the perks? Also, when I drink the PhD perk there is no perk bottle model either. Any help would be appreciated. Thanks.

I am having the same problem, someone told me to RIP them(Wraith or any other program) from a map which has already these perks.