Very slow viewport rendering / Yellow triangle when changing scenes in LayOut 2026 / Demora extrema para carregar Viewport

Hi everyone,

I’m experiencing a very frustrating issue in LayOut since I updated to SketchUp 2026.

My usual workflow is to duplicate a page and then change the scene for the viewport. However, every time I do this now, the yellow warning triangle appears, and the loading bar near the Viewport settings keeps loading endlessly. It takes almost 5 minutes just to update a single scene.

I’ve always used this same method of duplicating pages without any issues in previous versions. My computer has an excellent configuration, so it shouldn’t be a hardware limitation.

Has anyone else experienced this specific delay in the 2026 version? Are there any new settings or workarounds I should look into?

Thanks in advance! Érica

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Olá pessoal,

Estou com um problema bem chato no LayOut desde que atualizei para a versão 2026.

Meu fluxo de trabalho para montar o caderno executivo sempre foi duplicar a página e depois alterar a cena. Mas agora, toda vez que faço isso, aparece aquele triângulo amarelo de aviso e a barrinha de carregamento perto da área de “Porta de visualização” (Viewport) fica carregando sem parar. Leva quase 5 minutos para atualizar uma única página.

Sempre usei esse método e nunca tive essa lentidão nas versões anteriores. Meu computador tem uma configuração ótima, então não é limitação de hardware.

Alguém mais está passando por isso na versão 2026? Existe algum bug conhecido ou alguma configuração nova que eu precise ajustar?

Agradeço desde já!

Érica

Intel(R) Core™ Ultra 9 285K (3.70 GHz) / RAM 64,0 GB (utilizável: 63,7 GB) / NVIDIA GeForce RTX 5070 (12 GB)

Are you using the new or old graphics engine?

Are you rendering in raster, hybrid or vector?

Where are your files saved? Locally or on a cloud service / drive?

Can you share the model?

Are you using the new or old graphics engine? New

Are you rendering in raster, hybrid or vector? Raster

Where are your files saved? Locally or on a cloud service / drive? Locally

Can you share the model? sure! Sketchup - Google Drive

The files are still downloading but there’s no surprise that things would be slow considering the obesity of your SketchUp model file.


I’ll see if I can clean it up and reduce it a bit.

Actually, that’s incorrect. I’ve worked with larger files in older versions of SketchUp and LayOut, and this never used to happen.

Actually it’s not incorrect but I’ll leave you to it, then.

Ok :slight_smile:

1.13 GB is an enormous Layout file. What could be filling it up? The most likely thing is lots of download entourage (decoration) models from the warehouse, plants, fixtures like sinks, tubs, toilets, doorknobs. In any case one file that big may have worked in the past, and this one may be too big in a different way, it’s not a simple size equation. If it’s large format texture images bloating the file it will be have differently than if there are millions of edges, both can contribute to “large” files.

I’m not sure what exactly is dragging your file down, I’ll take a look later if I have time. But in general I have not experienced slow downs with 26 compared to previous versions, it feels a bit faster to me. Have you tried using the “old” graphics engine just to rule that out? But I suspect the true cause is somewhere in your very big sketchup file.

Lots of heavy entourage and excessively large textures.

I’ve been letting CleanUp3 run on the model now for around 2 hours and it’s still busy.

Yeah, I took a quick look… 26.5 million edges, yikes. The first scene “Geral” shows it all, miles of plants, furniture, general decor. If all this is really needed I would recommend the user adopt a dual file workflow, use one file with all the entourage for interior design and have a second file with all of that stuff deleted just for the architecture and use with layout.

In case you dig into the file for her, this is what I did to clean up the model a bit.

Fixed incorrect tag usage.


Ran CleanUp3.

Reduced the excessively large textures to a reasonable size.

There are still a large number of heavy entourage objects in the model which I didn’t touch. (This is after CleanUp3 did its work.)

All of the viewports in LayOut update now in less than 30 seconds.

The file is still quite large although I was able to reduce it by 36%. I’d be curious to know what you get.

It’s definitely not the file size. I just redownloaded the 2025 version and everything is working perfectly. I’m going to stick with this one. There is something wrong with the 2026 version. Even with small files, without any heavy items, I’m having issues with 2026. Thank you to everyone who tried to help.

Ok then. Sounds like you’ve solved your problem..