[ARCHIVED] Sims/Pets age up multiple times in a row

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? 1.79.93.1030
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 Outdoor Retreat Spa Day Dine Out Vampires Parenthood Jungle Adventure StrangerVille Realm of Magic Dream Home Decorator Luxury Party Stuff Perfect Patio Stuff Cool Kitchen Stuff Spooky Stuff Movie Hangout Stuff Romantic Garden Stuff Kids Room Stuff Backyard Stuff Vintage Glamour Stuff Bowling Night Stuff Fitness Stuff Toddler Stuff Laundry Day Stuff My First Pet Stuff Moschino Stuff Tiny Living Stuff Nifty Knitting Stuff Paranormal Stuff Country Kitchen Kit Bust the Dust Kit Courtyard Oasis Kit
Steps: How can we find the bug ourselves? I guess have a child sim age up on their own? I really don't know.
What happens when the bug occurs? My child sim auto-aged from a child to a teen, then to a young adult almost instantly.
What do you expect to see? I expect my child sim to age to a teen and remain a teen for a while before aging any further.
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 have not had mods in my game in a long time and I have never seen this. It might be related to the glitch I had where the child sim in question aged to a teen and the game crashed, but that was a few days ago and I have had to replay hours to get back here. I don't know if that is the issue or not, but I wanted to mention it because it crossed my mind. 

I would guess that this is caused by random aging in the game. As in, in an unmodded game, when a sim generates or ages up, they don't (usually) age up to zero days in their new life stage. So a teen might appear with 1 day gone or 13 days gone (and would then age up again soon).

Like the old bug where an elder comes out of CAS and then dies immediately.

Product: The Sims 4
Platform:Xbox Series X
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? Idk
What expansions, game packs, and stuff packs do you have installed? All of them
Steps: How can we find the bug ourselves? Toddler ages
What happens when the bug occurs? My toddler won't be a child
What do you expect to see? It not happening
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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Fix please 🥺

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? 1.98.127.1030
What expansions, game packs, and stuff packs do you have installed? All
Steps: How can we find the bug ourselves? When infant auto-aged up it kept going until it was a teen.
What happens when the bug occurs? Infant sim auto-aged up to toddler, then immediately aged up to a child and again to teen before it stopped.
What do you expect to see? Infant should age up to toddler and then stop until it's time to age up to a child.
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? No

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Since this new update came out my sims go into the t pose in the middle of doing things (last issue was that no one would put out a fire on my lot and kept going into the t pose). Newest issue has been with the auto age up process. My infant aged to a toddler like she was supposed to, but then she aged up again immediately after choosing her trait to a child, and then again to a teen immediately after choosing the child traits. 

I've been having a lot of issues with the time in my game as well, not sure if it's related. Everything happens an hour or two slower in the game. Like my adult sim is supposed to work from 8 to 5 but she goes to work at 9 and doesn't get home til 6. Meanwhile, my infant sim would be brought back home from daycare at 5 like she would normally if the parent was home... 

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? 1.98.158.1020
What expansions, game packs, and stuff packs do you have installed? all except for Batu and Paranormal Stuff pack
Steps: How can we find the bug ourselves? Infant aged up automatically from Infant up to Teen.
What happens when the bug occurs? The Infant was lying on the floor, then when it was his birthday he aged up to toddler. then to a child. Then up to a teen.
What do you expect to see? Infant aging up to toddler only
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? No

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Please help, because this bug has now completely stuffed up my 100 baby challenge

In one of my most recent saves I decided to replay with the Cats and Dogs pack, mainly focusing on dogs the first run. I currently had 5 dogs, 2 of which were puppies and 3 were adults. My puppies had a 2-day difference before aging up. The one puppy that was closes to aging up, had aged up into an adult and was perfectly fine. I camera focused onto my one and only human Sim rather than the dog, and then the now-to-be adult dog aged up again into an elder. Meaning that the puppy had grown into an elder in under 30 seconds and now I have an elder dog on my hands when the first dog I had gotten in my save still had 18 days before aging up into an elder. I do play on an Xbox Series S, and I also had problems of my save loading into the actual home lot of my Sims when I would start playing but I worked around that problem. I would have just exited the save and rejoined before the puppy had aged up, but it had been more than half an hour since of my last save and I hadn't gotten my second puppy beforehand.

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? 1.108.335.1020 DX9
What expansions, game packs, and stuff packs do you have installed? Cottage Living, Snowy Escape, Eco Lifestyle, Discover University, Island Living, Seasons, Cats and Dogs, City Living, Werewolves, Dream Home Decorator, Parenthood, Vampires, Outdoor Retreat, Tiny Living, My First Pet, Backyard
Steps: How can we find the bug ourselves? Naturally age up a sim (not using a cake)
What happens when the bug occurs? When Sims age up, they age up multiple times resulting in the Sim skipping a life stage or three. (Ex. My infant became a young adult in one birthday)
What do you expect to see? When the Sim has reached the end of their life stage, they naturally age up on their own to the next stage have a sad moodlet from a missed birthday.
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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Recently, this bug has been happening every time my sims age up. It started after the most recent update. This Sims will perform the age up action multiple times in succession. I am playing with Normal lifespan.

My infant sim was ageing up to a toddler as it was the end of their life stage. However, birthdays queued up one after another and so he aged to toddler, then immediately aged to a child, then teen, then young adult, in the space of about a minute. When the birthday popped up on the left hand side I tried to cross it off, but no luck. My poor infant!

@nikkirebel 

Move your Mods folder to the Desktop and delete localthumbcache.package. Then test the game in a new save.
If it works now check for updates to your Mods and CC. Add it back a little at a time while testing until you have found all that are broken.

One of my infant sims aged up to a toddler soon after starting the game and then aged to a child immediately after. There aren't issues with any other sims in my current save.