[CD] Adopted pets have turned black after adoption screen

I have just bought the Cats & Dogs add-on and since trying to use it, all of the pets have been having texture problems where selecting from adopting a pet or trying to create a pet for the household, they only load in full black or full white and they are unable to be customised. But there are times where some of the textures of the pets become patchy on the character but will go away back to being one full colour. Along with this, all the furniture and decorations are unable to be changed colours and stick to only being rainbow with a "?" symbol in the middle of it, and only some furniture/decorations can be placed.