Why is the part not moving? used cframe and position.

LOCAL SCRIPT inside of startergui

I'm making a button, when it's touched a client event fires and that part works fine but the onClientEvent function isn't working properly. I made it so when the player touches first time the ball gets inserted into workspace, the 2nd time he touches it, it makes the ball go to the position it was placed at if it moves. I used CFrame and Position to move it but they both didn't work.

local locate = true

PE3.OnClientEvent:Connect(function()
    local activatedPart = game.ReplicatedStorage:WaitForChild("Ball")

    print("Button activated")

    local ballCopy = activatedPart:Clone()

    if locate == true then
        locate = false

        ballCopy.Parent = game.Workspace

    elseif locate == false then
        print("ball moving") -- this prints btw

        ballCopy.CFrame = CFrame.new(-3235.872, 480.378, 502.991) -- line that is not working

    end 
end)

and no there isn't any errors in the workspace, prints? yes.

ty for help