Section cut, room is rendered black

I have been having this problem now for a long time. A Rendering in LayOut of a scene with a section is not being displayed correctly. It seems random (obviously it is not) that a room or even the full model is shown in black, not just the walls.
Can someone help me? I am sorry if this has been discussed before, I am sure it has, but I have not been able to find an answer to it.
Thank you


This happens if it is non consolidated geometry. Make one of the windows or doors to the outside a group or a component.

It might be that something is interfering that makes the section fill ignore your room’s interior wall faces. Are they correctly oriented?
If you are using Vector rendering, is there a change if you switch it to Raster?

I am using Vector rendering, when I switch it to Raster it gets displayed correctly (see picture).
I don’t fully understand what you mean by if they are oriented correctly. Could you please further explain.
The interior and the exterior walls are in two separate groups.
At this point, the doors and windows are just a hole in the wall. Also a picture of the 3D model:

THX everyone for your help


I have been experiencing the same problem for so many times since sketchup 2020 or something.
It tend to happen to the one of the room of many which are made in the almost same way as the one that have error fill.

As you can see in the 3rd image, I tried exploding the sketchup view port in LO.
Apparently the error fill was originally the one of the wall fill but it covers interior space except for the bed ,desk and wardrobe. I assume this is not the issue of consolidated geometry but some kind of error happening between LO and Sketchup because the sketchup scene looks totally fine.

Please let us know any idea about this issue.

This sucks… This still keeps happening to me seemingly randomly (talking about several different models).
@Masunami Thank you for your participation. It’s good to know that I’m not alone with this problem…
And thank you to everyone who is trying to help.

Please upload the model so we can diagnose the issue.

I don’t have this issue anymore with this model, in gerneal if I’m lucky it keeps disappearing after a few renderings.

Something similar to this has happened to me in the past. I found out that it was related with sections that were tangent to the ceiling. In SU model all looked fine, but in Layout the section fill looked like it was spilling out and filling the room.

Maybe yours is a related issue…

This can happen if the windows and doors into a space are not components or groups, basically bounding the room with loose geometry. I run into this on occasion during Schematic Design when my windows are not components, but simple planes of glass. Once the project progresses into design development and all the openings utilize components, then the issue does not occur.

This can also happen if the walls are not solid. i.e. there is a hole in the group. You can double check this with Solid Inspector. Even though it may work in sketchup, which usually it will not fill black if it is not solid but be sure to double check.