Why changing size of character causes torso to float?

Help and Feedback Scripting Support
#1

For some reason, when a player is large, and they scale themselves back down, their torso is suspended in the air. I personally cannot get this bug to replicate, but others have had it happen to them, and recorded it happening

local valueRounded = tonumber(string.format("%0.1f", value))
	
local valueClamped = math.clamp(valueRounded, 1, MAX_SIZE)

humanoid.HumanoidDescription.WidthScale = valueClamped
humanoid.HumanoidDescription.DepthScale = valueClamped
humanoid.HumanoidDescription.HeightScale = valueClamped
humanoid.HumanoidDescription.HeadScale = valueClamped * .5

if humanoid:FindFirstChild("HumanoidDescription") and humanoid:IsDescendantOf(workspace) then
	humanoid:ApplyDescription(humanoid.HumanoidDescription)
else
	humanoid.BodyWidthScale.Value = valueClamped
	humanoid.BodyDepthScale.Value = valueClamped
	humanoid.BodyHeightScale.Value = valueClamped
	
	humanoid.HeadScale.Value = valueClamped * .5
end

This only seems to occur after a player resets a few times

#2

Because you need to scale the HipHeight property of the Humanoid instance, in accordance with how you have scaled the character.

https://developer.roblox.com/en-us/api-reference/property/Humanoid/HipHeight

#3

Even with their formula, players are still getting floating torso’s

humanoid.HumanoidDescription.WidthScale = valueClamped
	humanoid.HumanoidDescription.DepthScale = valueClamped
	humanoid.HumanoidDescription.HeightScale = valueClamped
	humanoid.HumanoidDescription.HeadScale = valueClamped * .5
	
	if humanoid:FindFirstChild("HumanoidDescription") and humanoid:IsDescendantOf(workspace) then
		humanoid:ApplyDescription(humanoid.HumanoidDescription)
	else
		humanoid.BodyWidthScale.Value = valueClamped
		humanoid.BodyDepthScale.Value = valueClamped
		humanoid.BodyHeightScale.Value = valueClamped
		
		humanoid.HeadScale.Value = valueClamped * .5
	end
	
	humanoid.HipHeight = (0.5 * humanoid.Parent.HumanoidRootPart.Size.Y) + humanoid.HipHeight
#4

No, you would calculate HipHeight by just doing:

Humanoid.HipHeight = Humanoid.HipHeight * Scale