There doesn’t appear to be a one-size-fits-all fix as I’ve found advice on everything from popping into CAS to reset it, changing the sim to normal height and then back to the desired height, deleting cache files, traveling to other lots, or changing clothes. It appears to be random and unpredictable, and while it’s merely a visual glitch it can be a bit alarming if you don’t know it can happen.

Though it’s not totally clear why, sometimes a height slider can cause one of your sim’s appendages to disappear.

The easiest way to limit this is to keep your height adjustments fairly close to the standardized height, or play around with your sim’s height until you find something that achieves the desired effect. Again, this doesn’t actually affect gameplay and just looks funny.

Animation glitches also occur when a sim of extreme height is interacting with objects in the world such as clipping into/through items, their hands not actually holding objects which instead float above or below, etc.

Things like these are purely visual and don’t affect actual gameplay. For example, when my sim Sasha hugged her friend, due to her larger height the friend’s arms clipped into Sasha’s shoulder.

Because the Sims 4’s animations are all programmed based off of standardized body heights it’s to be expected that animations may look off between sims, especially those of drastically different heights.

Using height slider mods may cause visual glitches in the game, and it’s not unusual to experience any of the following: Both the slider and body presets are available on their Patreon page. They’re a great option for players who don’t want to sacrifice any vanilla slider capability, are intimidated by the idea of manually changing heights, or just want a simple click-and-go height option. In addition to the slider mod, Luumia also has a collection of body presets available in short, medium short, medium tall, & tall heights that you can use instead. The Sims’ head, hands, midriff, and feet remain proportional to the size of the body as you adjust the height, which keeps things looking realistic. This allows you to maintain the adjustability of your sims’ feet as the effect isn’t overridden here like it is with the other mods. While also based on SimmyTheSim’s original mod, this version has been modified significantly and the height is manipulated by adjusting the sim at the neck.

As an incredibly active member of the Sims 4 modding community, Luumia has what might be the only maintained height slider mod out there with its last update only a few months prior to the time of this writing.

Redhead sims 4 body mods slider