Why aren't textures appearing in viewport render but visible in the final render?

Question

I'm messing around with the Barcelona Pavillion demo scene. When I enable the viewport render, no textures are appearing in the viewport render, the objects are just grey:

However, when I render the scene all the textures are properly assigned. Why is this?

Answer 1

In the View Layers panel > Override, remove the selected material, otherwise you'll make it the only one showing for all your objects:

Answer 2

in the "viewport shading" view normally there are no textures. This is default behaviour (there are exceptions). If you want to see textures, change to

• material preview

or

• rendered view

The "solid" viewport display is made for building/moving/creating things and good performance. That's why textures aren't shown because they tend to make the computer/visualization slower.