[ARCHIVED] Eyes/Eyelids Issues (Patch 1.110.265/2.01)

Product: The Sims 4
Platform: PC
Which language are you playing the game in? French (but I understand english so no need to speak french)
How often does the bug occur? Everytime
What is your current game version number?  Patch 1.110.265.1030 (DX11)
What expansions, game packs, and stuff packs do you have installed? Everything.
Steps: How can we find the bug ourselves? Open Maya or any animation program, then animate the lids bones lower or whatever, then check how it translates in the game. Or you can also just check that the sims when they watch things lower, their eyes go inside the eyelid and it looks creepy in the game (you can see on screenshots I shared below)
What happens when the bug occurs? Eyelids doesn't translate correctly in the game. It seems that since the eyelashes were introduced, the eyelids doesn't animate as they should.
What do you expect to see? Eyelids animating/posing correctly as it used to be.
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes, but even without any mods (no CCs, no scripts, nothing) the bug still happen, even after the cache deleted.
Did this issue appear after a specific patch or change you made to your system? It happens since the patch that intoduced the base game eyelashes.

This bug isn't fixed.

I am a modder and an animator and it seems that the eyelids doesn't translate correctly in the game like it used to be since this bug was introduced, and it's still there with the new patch. When the sim looks downside, the bottom eyelids don't move at all, making sims looks creepy (the eyes go inside the eyelid).

I did some animations with the eyelids moving down while the eyes are looking down, and the animation from the eyelids doesn't translate correctly in the game at all. 

fix those bones or whatever that doesn't work correctly in the game :

b__R_LoLid__
b__R_UpLid__
b__L_UpLid__
b__L_LoLid__

This is an example using CAS, where the eyes aren't closing completely due to the eyelids animations not translating correctly in the game. Before the eyelashes patch, they were closing just fine.

Gifs with the bug : 

This is a gif from 2022, so without the bug :

Maxis animations :

Custom animation :

CM Edit: Split from [FIXED] Eyes/Eyelids don't close

Edit By Crinrict: Adjusted Title

Edit By Khlas : (more context)

I did another test, just to show you how terrible this thing is.

For this test, I did a simple sleeping pose I will use to demonstrate the bug, because unfortunately it's the only way to explain the issue more properly, by comparing in an animating program and then how it translates in the game.

To achieve this result in the game with the eyes being closed like this :

In a posing/animating program, I had to do this :

There is clearly an error of how the eyelids translate in the game since the lovestruck patch. I'd like to know if maxis is aware of this issue and if they will fix this, as it affect every animations in the game.

If I'm closing the eyes as usual in the program,

this is the result I get in the game :

And no, it's not the program fault. This happens since the lovestruck patch and again, it affects all the animations from the game, even the vanilla ones. I believe a data from the eyelids or something similar has been touched and it needs to be reverted back.

I don't know what to show more at this point, I think this is the most straightforward I could do to demonstrate the bug.