Rendering by normal, in sketchup and what are the concequences

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I created interior doors by placing one on each adjacent surface between spaces, and then manually matching them. For the outside boundary condition, I assigned the door located in the adjacent space (i.e., the neighboring room). This part of the work was done using the SketchUp OpenStudio Plugin.

However, I’m uncertain about one thing: when I enable the “Render by Surface Normals” view in OpenStudio, all doors appear red on both sides, and the floors and ceilings also appear red on the sides facing the interior of the rooms.

Is this correct? I asked an AI model, and it suggested that sub-surfaces (like doors) should appear red from the outside of the space they belong to, and gray (or white) from the inside.

I am modeling interior doors because the building is a villa with different thermal zones, including a gym, sauna, and other rooms with distinct temperatures.

P.S. also when I enter openstudio 3D view, and I select hide windows, it hides only some of them, while the others remain, the same happens with doors, what is causing that and what could be the solution for that...