KyliePelican I don't see anything obviously wrong in your dxdiag, but there's clearly an issue with graphics rendering at least some of the time. Do you play with fairies, and if so, do they have custom or glowing tattoos? I don't just mean custom content but anything you designed yourself, or anything that glows. If so, please remove the tattoos, and if that doesn't help, test with a non-occult sim with no tattoos.
If this doesn't apply, or the human sim is also affected, do you run other demanding games, or could you test one or two? I'm wondering whether there's an issue with the graphics card overall. It's not common in a GPU this new, but it can happen.