[ARCHIVED] Purple lighting in Willow Creek neighborhood

Product: The Sims 4
Platform:Mac
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? 1.73.48.1230
What expansions, game packs, and stuff packs do you have installed? Snowy Escape, Eco Lifestyle, Discover University, Island Living, Get Famous, Seasons, Cats and Dogs, City Living, Get Together, Get To Work, Jungle Adventure, Parenthood, Dine Out, Spa Day, Outdoor Adventure, Paranormal Stuff, Nifty Knitting, Tiny Living, Moschino, Laundry Day, Toddler Stuff, Fitness Stuff, Vintage Glamour, Backyard, Kids ROom, Romantic Garden, Movie Hangout, Cool Kitchen, Perfect Patio, Luxury Party, Holiday Pack, Throwback Fit Kit and Country Kitchen Kit
Steps: How can we find the bug ourselves? Go into willow creek and go into build mode in either of the 40x30 lots in the Pendula View neighborhood. After building on them, return to manage worlds (Map View).
What happens when the bug occurs? When you go back into Map View, the 40x30 lots have strange lighting, they look very yellow toned and therefore different from how they look in build/live mode.
What do you expect to see? I expect to see the lot previews / thumbnails look like the build itself and not have weird lighting glitches.
Have you installed any customization with the game, e.g. Custom Content or Mods? Not now. I've removed them.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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The first image is a screenshot from my save file in which the lighting glitch has occurred. The second screenshot (with base game builds) shows how the lighting looks before you edit the lot / how it should look all of the time.