[OPEN] Shadows on objects in a split level space

Product: The Sims 4
Platform:Sony Playstation 4
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? 1.23.61.4400
What expansions, game packs, and stuff packs do you have installed? Seasons, Island Living, City Living, laundry day, perfect patio, back yard stuff, spooky stuff, jungle adventure
Steps: How can we find the bug ourselves? Create a split level room, the issue is occurring whenever placing stairs from the foundation/higher level to the ground/lower level. If placed against some walls, the shadow disappears, however not all walls produce the same effect.
What happens when the bug occurs? The landing or top stair is completely black when split level room is enclosed.
What do you expect to see? The correct lighting on stairs if placed inside split level rooms.
Have you installed any customization with the game, e.g. Custom Content or Mods? On console - never used.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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Things I've attempted: 

• removing a section of wall to make the game think I'm outside, placing the stairs, then replacing the wall. Stairs turn pitch black as soon as the room is enclosed again.

•placing walls in sections where I want the stairs, didn't work. for some reason only certain walls stop the shadow issue.

•placing a wall between the higher level and the lower level, making the ground level 1 separate room. No difference.

•begging the game to just let me have a split level home without all this nonsense please I just want some stairs. No difference.

Last photo is an example of the only wall placement that shows the stairs normally.