Making character lean left or right (strafing)

Roblox’s animation update messed up the current one I am using which uses the lowertorso’s root and tweens the angle.

local goal2 = {C1 = lowerTorso.Root.C1*CFrame.Angles(0,0,math.rad(-5.75))}
local goal3 = {C1 = lowerTorso.Root.C1*CFrame.Angles(0,0,math.rad(5.75))}

Example of how it’s messed up now:

The arm never used to stutter / squinch inward / bend out like this; https://gyazo.com/f651011b7bd2cccbdcefcd4c57c8a23e

Who can help me fix or How do I make a character lean left / right when pressing a or d.