Sims Have A Weird Lean With Certain Interactions

I've noticed this too! My sims have been twisting and leaning ever since I updated to the Growing Together patch. It's most notable when they're standing, as it seems it's usually most animations that move their torso in a significant way (ex. Deep Conversation, Suave Kiss, whining teens, laughing, uncontrolled hissing...) They also won't stop twisting when talking to someone behind them. Makes trying to capture screenshots a bit annoying when your sim decides they just really need to stretch their neck and back mid-conversation (it also gets a bit creepy the way they move their bodies, sometimes.) Removing mods, starting a new save, repairing, and creating a new sims folder did nothing to fix the problem.

@atr0xiis Yeah, they kinda look like animatronics with their sharp movements. With things like the werewolves growling when their fury is fairly high, it is normal when they are not in a conversation with anyone. It's when they are talking to another sim that they have that weird leaning. The deep conversations, I do remember them leaning a bit, but no where near as far as it is now.

Also, this is a bit of a weird lean with the kick animation from Growing Together with toddlers. The adults have a weird lean where their arms get a bit displaced.

I noticed this a while back and tried to see if anyone else did. Couldn't find any discussions nor reports on it, so thought I would bring it up. I'm glad to know I'm not the only one experiencing this. And it can't be a mod issue as I play vanilla (never used mods/cc).

Edit: This is what I was referring to with the werewolf feral growling. This photo is the growling with just the werewolf.

And these photos are the same animations except the werewolf is socializing with another sim.

Product: The Sims 4
Platform:PC
Which language are you playing the game in? Svenska
How often does the bug occur? Every time (100%)
What is your current game version number? 1.101.290.1030
What expansions, game packs, and stuff packs do you have installed? All packs except for Home Chef Hustle. Kits: Fashion Street, Carnaval Streetwear, Moonlight Chic, Desert Luxe, Basement Treasures.
Steps: How can we find the bug ourselves? Have a sim doing the suave kiss on another sim. To do this the sim has to be in a Confident mood, and the interaction has a cool-down time.
What happens when the bug occurs? There are two animations for suave kiss, one of them the sim bends forward and kisses the other sim's hand, and the other one the sim puts a hand on the other sim's back, pulls the sim towards them, and then kisses the sim's hand. Both of these animation were straight before, now they're bent/slanted/askew.
What do you expect to see? The animations being straight.
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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Suave kiss, bend forward version, before it changed (this was the only picture I could find of it, so I don't know how noticeable it is, but point is that they're standing straight and they're both holding their arms straight, and there's no clipping between arms and torsos):

Suave kiss, bend forward version, now (not straight at all, and the arm often clips with the torso of the sim who receives the interaction, as you can see in picture 3 and 4):

Suave kiss, pull sim towards you animation, before it changed (again, this was the only picture I could find, and I don't know how noticeable it is, but the animation is straight and there's no clipping between arms and torsos):

I didn't manage to get any pictures of what the pull forward version looks like now, but that one isn't straight anymore, it's crooked and the arms almost always clip with the torso of one or both sims. It's quite difficult to get pictures of this kiss, since this interaction has a cool-down time, and as soon as sims start to flirt they often get the Flirty emotion and this kiss can only be done with the Confident emotion, and since it's random which of the two variants of the kiss is used, sometimes you have to try several times, and I gave up on trying to get a picture after a while.

I hadn't thought about this happening with other animations than the suave kiss before my bug report was merged with this one, but now that I think about it I realise that they lean very weirdly in other situations too, especially the deep conversation animation

This is also happening in my game! As noted, it's super apparent in interactions like Suave Kiss.

@SqueamishNerdI remember them leaning a little for things like deep conversation, but after the update it went from a little lean to practically becoming a contortionist. I wish I had screenshots from that. I only have screenshots for the suave kiss (since it is an adorable interaction) from before the update, so it was easy to show the difference.

@DracuAlice2017  I managed to find two old pictures of deep conversation, one standing and one sitting. They lean, but not as much as they do now.

I have this one too. One of my two sims was expressing devotion to the other, but without looking in their partner eyes. (it seems he's expressing devotion to his spouse while looking at another person. LOL)