@Bluebellflora @crinrict I updated my computer and fiddled with the graphics and I think it's sort of fixed.
My graphics settings were on low. If I switch it over to medium or low medium then the clouds go away (I also assume the clouds are gone in high and ultra but didn't test those). The clouds come back if I switch it back to low.
My sims can now sunbathe on the beach on beach towels but my mermaid sim cannot sunbathe in the water because "it is too cloudy".
So it's not fully fixed but is sort of fixed.
