Missing shine textures?

what is this i dont even

This is a very unusual error I’ve been experiencing as of lately. Anything that gives off a shine of any sort, while in-game, will suddenly lose their texture. This is never an issue at the start of the game. It only occurs as the game processes, maybe because too many items/npcs/whatever are being spawned. Once it happens though, it never goes away until I restart Gmod entirely.

Any idea what could be causing this? I recently did a complete reinstall of Gmod and it’s only started happening since I started playing again, well after some big updates like PHX being part of Gmod.

EDIT: You’ll see a busted manhack in there too, just to show it’s not just the gun that has this error. It’s anything that shines or gleams a glossy texture.