Re: Shine/Glare on non-cc items

@iluvtolol  Please test the base game (non-cc) items in a clean user folder.   Move the entire Sims 4 folder out of Documents > Electronic Arts and onto your desktop, and when you launch the game, a clean folder will spawn with no content.  (Your saves and other content will be intact in the folder you moved but temporarily not read by the game.)  Don't add anything to this folder yet; just start a new save  and see whether any of the items are still affected.

If you do notice more shininess, please post new screenshots from the cc-free new save.  Please also list the full specs of your Mac: everything under About This Mac including the OS and except for the serial number.