To be clear, this occurs infrequently and only with this model.
The only time I’ve noticed it happening is when the model has been open for a while.
Symptoms: I get a lot of noise on the screen: huge black angular shapes, sort of like surfaces become black coloured and remain in place as I rotate the model, multiplying these angularities
Hoping someone has some ideas - I’ve done the obvious like cleaning it up but problem persists
This was one of the first models I built. I redid yesterday deleting almost all of the old geometry (roof supports and railings were copied over) but problem continues; it’s almost as though there is a hidden fault somewhere
This implies some graphics issue. Are you still using SketchUp 2022? Have you checked with Nvidia to see that graphics drivers are up to date? Don’t trust Windows to tell you that. You say SketchUp crashes. Is it really crashing? Are you getting Bug Splats? If so, are you sending them in?
I don’t see anything in your model that is weird. There is one component and 19 materials that are unused and could be purged.