Sims/Pets age up multiple times in a row

Three times this has happend to me since I downloaded Lovestruck; if the smallest toddler doesn´t get help to age up (by birthday cake), but has to grow up automaticly, they age up twice in a row! They go from the smallest toddler directly to school child, skipping  the toddler age where you can pottie train them. 

I also had this issue. I let infant age up and it skipped toddler phase.

That sounds really frustrating, especially when you're trying to do the 100 Baby Challenge! The 'double aging' glitch must be making it nearly impossible to progress. Since you’re playing without mods or custom content, it does seem like this might be a game issue rather than something on your end. Here are a few things you can try:

1. Check the Age Settings: Make sure your game settings haven’t been accidentally changed. Go to the game options and verify that your lifespan settings are as you want them.
2. Repair the Game: Through the EA app (or Origin if you’re using that), you can try repairing the game files. Right-click on the Sims 4 in your library and select 'Repair.' This might fix any corrupted files causing the aging issue.
3. Reset the Sim: If the problem persists with a specific Sim, try resetting them. You can do this by opening the cheat console (Ctrl + Shift + C), typing resetSim [Sim's full name], and pressing Enter.
4. Check for Updates: Sometimes, these kinds of issues get fixed in patches, so make sure your game is up to date.
5. Contact Support: If the problem continues, it might be worth reaching out to EA Support. They might be able to help, especially if it's a less common bug.

I hope one of these steps helps, and you can get back to your challenge without any more aging issues!

Playing Littlesimsie’s (Kayla’s) not so berry challenge and my infant aged up into a toddler. However the kid ended up aging up into a kid than teen. Not sure if it’s some sort of glitch or because of the long generation but I just lost 2 life stages. I had no idea how to react I cried and laughed all at the same time 😂😭

I've just an infant automatically age up to a toddler, I chose her new trait to replace the infant trait she's now aged up AGAIN to a child!! I didn't touch anything.... I mean I know people don't like the toddler stage but I do, so I'm sad now 😪

Product: The Sims 4
Platform: PC
Which language are you playing the game in? English
How often does the bug occur? First time this has happened to me 
What is your current game version number? 1.109.207.1020
What expansions, game packs, and stuff packs do you have installed? A lot.. EPS: Growing Together, High School Years, Seasons, Cottage Living, Snowy Escape, Discovery Uni, Island Living, Get Famous, Get Together, Get to work City Living. GPs: Wedding Stories, Parenthood, Dine out, Spa Day. SPS: Laundry Day, Romantic Garden. Kits: Book Nook, Desert Luxe, Little Campers
Steps: How can we find the bug ourselves? Infant aging up 
What happens when the bug occurs? Infant is in playmat and crawls out on their own due to the game forcing their birthday and ages up twice. 
What do you expect to see? I expect them to only turn a toddler, and not a child. 
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes, I have CC in my game. Removed the Mods folder (as seen in the video attached), and bug still occurred. 
Did this issue appear after a specific patch or change you made to your system? First time this has happened to me, so I'm going to assume yes.

Not sure if this has been reported already, but just figured I might as well make a report. Can cheat for now to fix this, but figured its worth reporting for those who can't/ don't like to cheat in the game. Tried to replicate it with my other infant with leaving them in the playmat, but they only aged up once.  Might have been a one time thing, but still thought it was worth reporting if anything. 

Also having the same issue as seen in the video attached. Removed my mods folder, and the glitch still occurred. 

I’m having the same issue on PS5 too, and no amount of restarting/redownloading/updating has fixed it yet :( 

My new born skipped the infant stage and went directly to toddler (she is a spellcaster... don't know if that is relevant or not). Also when she became a toddler they were invisible until I restarted the game.