Less than half of DragStopped function gets called, why?

I have a Label that has a function that when it stops being dragged the function runs like so:

script.Parent.DragStopped:connect(function(X, Y)
    print(("dragging stopped at (%i, %i)"):format(X, Y)," myPos: ",script.Parent.Position)
    local entireFrame = game.Players.LocalPlayer.PlayerGui.ScriptPart.entireFrame
    print("test")
    local data = entireFrame.Script.GetPreviousPos:Invoke(script.Parent.Value.Value,script.Parent.Name)
    print("test2")
    -- [================] <-screen width
    -- [========        ] <- /2
    -- [====            ] <- /2/2
    -- [==              ] <- /2/2/2
    -- [=               ] <- /2/2/2/2
    local partialX = (((entireFrame.AbsoluteSize.X/2)/2)/2)/2
    print("frame: ",entireFrame.AbsoluteSize.X/2/2," math:",(entireFrame.AbsoluteSize.X/2/2) + partialX," less than X: ",(entireFrame.AbsoluteSize.X/2/2) + partialX >= X," X: ",X)

    if ((entireFrame.AbsoluteSize.X/2)/2) + partialX >= X then
        script.Parent:TweenPosition(UDim2.new(data[1]-1,0,data[2],0))
    elseif ((entireFrame.AbsoluteSize.X/2)/2) + partialX <= X then
        entireFrame.Script.addToScriptEditor:Invoke(script.Parent.Value.Value,script.Parent.Text)
        script.Parent.Position = UDim2.new(data[1]-1,0,data[2],0)
    else
        print("idk what to tell you dude")
    end
end)

it prints "dragging etc..." and "test", i also have more print statements to see if GetPreviousPos gets invoked but it doesn't print either. This all works perfectly fine in Play Mode but not when starting the server in Studio and in online mode. Any suggestions?