This helped on PS4. I'm trophy hunting so, I don't use cheats. What I did to fix it is really annoying because it does take away your relationship with the kitten. Since you cant Age up a sim or pet in CAS without cheats. The only option is to save the Pet to your gallery then, remove the pet from your household. Add it back and it will allow you to edit the Pet as if it had never been in the household. Hope this helps for anyone on Console who may be experiencing the same thing and don't mind sacrificing relationships.
@Sm00re1 wrote:
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? 1.68.154.1020
What expansions, game packs, and stuff packs do you have installed? Cats and Dogs, and Holiday Celebration pack.
Steps: How can we find the bug ourselves? Try to age-up a kitten with an age-up treat.
What happens when the bug occurs? The kitten can eat as many as she wants while on the home lot and nothing happens. It's like giving her a normal treat.
What do you expect to see? I expect to see my cat age up.
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
I've fed my kitten seven age-up treats to no avail. I've waited overnight (in-game) and still, nothing has changed. She is still a kitten.Yes, they were on the home lot.
Edit By Crinrict: Added Tag to Title