Scene Rendering Problem - Rendering only produces a blue background instead of an interior with lots of detail. What is wrong in the settings?

Question

Design

Good day! - for all. except for me, because I've been hanging on to this problem for an hour now:
when rendering, all objects disappear (except for the coffee table cover, as I understand it), and this blue background turns out (see picture). I checked other scenes - everything is fine - it means that the problem is inside this scene ... the render settings also did not change (at least consciously).
I start to fall into hysterics, I panic, I tear my hair on my head, in short, according to the law of meanness, everything happened at the last moment. Please help urgently!!!!!!!!!!!!!!
PS
Did you make walls with the Wall tool? floor and ceiling - Plans. in the attached scene, the objects have the same material, but in a similar scene with different materials, the same trouble.

Answer 1

The first thing that came to mind was that rendering was disabled in the properties of objects (the "renderable" checkbox).

Answer 2

You can see from the viewport that override for 1 material is enabled in the global settings, maybe you should turn it off?