Why do my first-person arms randomly get deleted?

I have a script to show first person arms, but for some reason, they disappear shortly after the character is spawned. It works perfectly fine in Studio, but on a local server, it starts to act strange.

repeat wait() until game.Players.LocalPlayer.Character
local name = script.Parent.Name
local character = game.Players.LocalPlayer.Character
local camera = workspace.CurrentCamera
game.Players.LocalPlayer.CameraMode = "LockFirstPerson"
character.r.Name = name.."r"
character.l.Name = name.."l"
character[name.."r"].Parent = workspace
character[name.."l"].Parent = workspace
game:GetService("RunService").RenderStepped:connect(function()
    workspace[name.."r"].CFrame = CFrame.new(camera.CFrame * Vector3.new(1, -0.5, 0), camera.CFrame * Vector3.new(0, 0, 100))
    workspace[name.."l"].CFrame = CFrame.new(camera.CFrame * Vector3.new(-1, -0.5, 0), camera.CFrame * Vector3.new(0, 0, 100))
end)