[ARCHIVED] Fire alarm but no fire (invisible fire/Fire inaccessible)

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Rarely (0% - 9%)
What is your current game version number? 1.96.365.1030
What expansions, game packs, and stuff packs do you have installed? EPs: Get Together, City Living, Cats and Dogs, Seasons, Get Famous, Island Living, Discover University, Eco Lifestyle, Cottage Living. GPs: Spa Day, Dine Out, Parenthood, Jungle Adventure, Dream Home Decorator. SPs: Perfect Patio, Kids Room, Vintage Glamour, Bowling Night, Laundry Day, Tiny Living. Kits: Industrial Loft, Desert Luxe.
Steps: How can we find the bug ourselves? Place the kids science experiment table in the corner of an upstairs room that has a roof outside on the other side of the wall. When the table sets on fire, the fire spreads through the wall and into the roof/on top of the ceiling of the rooms below.
What happens when the bug occurs? When the kids science experiment table sets on fire in the corner of an upstairs room with a roof on the other side of the wall, the fire spreads through the wall and onto the roof/ceiling of the rooms below. The fire continues to spread round the whole roof/ceiling. Firefighters obviously can’t reach this area so the fire cannot be stopped.
What do you expect to see? Fire should not be able to spread to roofed areas or on top of ceilings. This especially shouldn’t happen when these ceilings are not part of an upstairs room (i.e. if I were to make a “room” under the roofs/on the ceilings to be able to use trims).
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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Images showing fire inside roof/on top of ceiling.