[FIXED] Blue squares on lot traits when saving to gallery/library

Product: The Sims 4
Platform:PC
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? 1.93.146.1020
What expansions, game packs, and stuff packs do you have installed? All of them including kits.
Steps: How can we find the bug ourselves? Open build mode on any lot, assign any number of lot *challenges* but no lot traits, then attempt to save the lot. When you have the option to add description, etc., you will look at the picture preview and see that there are blue squares where lot traits would usually be.
What happens when the bug occurs? There are blue squares where lot traits would be if I'd assigned any. It doesn't happen with any other combination of traits/challenges, just when only lot challenges are the only thing assigned.
What do you expect to see? No blue squares
Have you installed any customization with the game, e.g. Custom Content or Mods? Never used.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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I tested on exclusively default lots, in multiple worlds, and it still happens. I also tested after a game repair and folder refresh, just in case anything was buggy.

Edit By Crinrict: Adjusted title a bit