Why does my model look flat, like attached

At a guess I’d say it has little height compared to width and you are viewing it edge on. But without seeing the actual skp model, that’s just a guess. Can you share the model with us?

Thanks, for the response. I don’t know exactly what caused it, but switching browsers corrected the issue. Just another problem with Safari, apparently. Chrome works fine.

Due to various issues such as this, Chrome is generally the best browser for SketchUp Web.