All the meshes have Render Fidelity set to Automatic, and changing it to Precise doesn’t seem to fix.
Also, my level of mesh detail setting is DistanceBased. I never changed it, though, so it’s strange that this is happening without me even touching the settings.
I can’t be sure if it’s the mesh itself that’s broken (from Roblox) or it just doesn’t render correctly, caused by your Studio. I’d try to download those meshes using the website and see if they’re fine there