Shower/Tub Combos look clean even when dirty

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Often (50% - 99%)
What is your current game version number? 1.77.146.1030
What expansions, game packs, and stuff packs do you have installed? All except Batuu
Steps: How can we find the bug ourselves? Make a shower, tub, or shower/tub dirty (through gameplay or cheats).
What happens when the bug occurs? The object isn't visibly dirty, but will count as dirty (cheat available to "make clean," aspiration milestones involving dirty objects count it)
What do you expect to see? A visual indication of when the object is clean vs when it is dirty.
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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I originally was playing this on a haunted house lot with all the lot challenges, including the filthy challenge, but taking that challenge off and changing to a normal residential didn't fix the issue. I haven't tested this on every shower or tub. I was having the issue with both the "Under the Sea Clawfoot Tub with Shower" and the "Sheer Will Clawfoot Tub."