Why I put the word “Vanishing” in quotations is because the parts aren’t increasing transparency or moving away, they just dissapear and stop everything from rendering behind it(except highlights). This will help explain:
There are parts behind it, but only highlights are being rendered. This glitch only happens to those parts, and parts on a different platform. All the parts are just normal parts, rectangular, and the most complicated parts in the game are the character parts. This happens both on Roblox studio and normal Roblox, this happens on other devices too. Also when it transitions from visible to invisible, Position nor Transparency changed, my workspace settings are all default, when I deleted everything in lighting, it still glitched. I don’t know why it happens, doesn’t happen immediately when I join, just starts after a minute or so, don’t know what triggers it. This ain’t a bug, its a cockroach.