The Gallery STILL has duplicates

i just repaired my install via the EA App and the issue persists. the only mod i have installed was installed on the 26th of this month and i've been having the issue since July as i said, before i installed the mod. someone please help.

i've done some investigation and believe it is highly unlikely that user error is responsible for this. the uploads being duplicated in the gallery appear in their respective uploaders' catalogues only once. also it is the same bloc of uploads being repeated in the same sequence over and over. the chances of Person A uploading Item 1, Person B uploading Item 2, ...Person Q uploading Item 17 and then Persons A to Q uploading Items 1 to 17 again in the exact same order, without it being interrupted by other uploaders, is not particularly high.

Product: The Sims 4
Platform: Windows 11 (Lenovo laptop)

Which language are you playing the game in? English United States
How often does the bug occur? Pretty often. If you have a Library file that was saved a moment before the bug triggered, then try reproducing the bug, the bug comes out consistently.
What is your current game version number? PC: 1.111.102.1030
What expansions, game packs, and stuff packs do you have installed? 

Get To Work
Get Together
City Living
Cats & Dogs
Seasons
Get Famous
Island Living
Discover University
Eco Lifestyle
Snowy Escape
Cottage Living
High School Years
Growing Together
For Rent
Outdoor Retreat
Spa Day
Dine Out
Vampires
Parenthood
Jungle Adventure
StrangerVille
Realm of Magic
Dream Home Decorator
My Wedding Stories
Werewolves
Perfect Patio Stuff
Cool Kitchen Stuff
Spooky Stuff
Movie Hangout Stuff
Romantic Garden Stuff
Backyard Stuff
Vintage Glamour Stuff
Fitness Stuff
Laundry Day Stuff
My First Pet Stuff
Moschino Stuff Pack
Tiny Living
Paranormal
Home Chef Hustle
Courtyard Oasis Kit
Fashion Street-Set
Industrial Loft Kit
Incheon Arrivals Kit
Modern Menswear Kit
Blooming Rooms Kit
Desert Luxe Kit
Everyday Clutter Kit
Bathroom Clutter Kit
Basement Treasures Kit
Grunge Revival Kit
Book Nook Kit
Modern Luxe Kit
Riviera Retreat Kit
Cozy Bistro Kit
Steps: How can we find the bug ourselves? I have 1164 Tray files in my Library. Online social feature was turned off. I select the Filter on the left hand side, to only able to see my Households excluding Lot files. With custom content checked, too. Then I added 3 newly created sims to the Library. 
What happens when the bug occurs? Then came out the duplicated thumbnails of the Household located at the last slot. The duplication always starts on the Household that occupies the last slot. And continue to duplicate the 2nd last Household as you add new sims into the Library, continue to the 3rd last, and so on. 
What do you expect to see? To be able to freely add or delete any number of sims into the Library without fear of duplicated thumbnails that can potentially corrupt my tray files!
Have you installed any customization with the game, e.g. Custom Content or Mods? I did test without my Mods folder and the bug was still there!
Did this issue appear after a specific patch or change you made to your system? I don't know which patch brought this bug, but the first time I experienced it was patch 1.108 until 1.111

PLEASE FIX THIS BUG I can't add/save new sims to my Library without triggering this bug! This is game breaking!

EDIT: I have also repaired and factory reset my game, still didn't solve the bug!