Help with HumanoidDescriptions

Try doing this:

script.Parent.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild("Humanoid") then
		local description = hit.Parent.Humanoid:GetAppliedDescription()
		description.HeadScale = 2
        description.Parent = nil

		hit.Parent.Humanoid:ApplyDescription(description)
		print("applied")
	end
end)

The change being this: description.Parent = nil before applying the description.
Instead of nil try workspace (or some other container like ReplicatedStorage), if nil doesn’t work.