Why is the Left Motor Failing, but the Right Motor isn't?

repeat wait() until (game.Players.LocalPlayer ~= nil) and (game.Players.LocalPlayer.Character ~= nil); Player = game.Players.LocalPlayer; Char = Player.Character;

Cam = workspace.CurrentCamera;

Char.Torso["Right Shoulder"]:Destroy(); Char.Torso["Left Shoulder"]:Destroy();

LMot = Instance.new("Motor",Char); LMot.Name = "LMot" ; LMot.Part0 = Char.Torso; LMot.Part1 = Char["Left Arm"]; LMot.C1 = LMot.C0*CFrame.new(0,0,-1.5)*CFrame.Angles(math.rad(90),math.rad(90),0);

RMot = Instance.new("Motor",Char); RMot.Name = "RMot" ; RMot.Part0 = Char.Torso; RMot.Part1 = Char["Right Arm"]; RMot.C1 = RMot.C0*CFrame.new(0,0,1.5)*CFrame.Angles(math.rad(90),math.rad(90),0);