Texture is rendered as a flat colored surface I'm using AMD ProRender and I can't get it to render a texture I applied to a cuboid properly. This is my node graph and material properties panel:


And this is what the render looks like:



Basically the floor should have a damaged concrete texture. I'm probably being an idiot and overlooking some setting. What am I doing wrong or how could I proceed to troubleshoot this?
When UV unwrapping, I hadn't selected all the sides of the object. Press A to select everything, then U to unwrap it all. Marking seams and unwrapping does nothing when there is nothing selected and there is no error message.