Keyshot not rendering textures properly - Also advice for new user

[vici30]

Here I have a basic setup with a default wood texture, default settings (see attachment). As you can see, the texture is not rendered properly. Metal and glass, for example, render properly.
I am new to rendering ( 3 days ) and I still have a lot to figure out. Can you also give me some tips along with the advice to my problem? Another issue I would have is the surface of the liquids being grey :/