Placement system works once and then stops working?

Me and a friend are making a City Life type game and im making the placement system but there's a bug in it, when i go to place something it works but then it stops after the first time here is my code:

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()
local Item = "Chair"
local Cost = 0
local Object = game.Lighting.Ownables:FindFirstChild(Item)
script.Parent.MouseButton1Click:connect(function()
  local Fold2 = game.Workspace:FindFirstChild(Player.Name.."Folder")
   if Fold2 == nil then
    print("Folder not found, creating one")
    local Fold = Instance.new("Folder",workspace)
    local PartG = Object:Clone()
    local Part = PartG
    Fold.Name = Player.Name.."Folder"
    PartG.Name = "UnPlaced"
    PartG.Parent = Fold
  else
    print("Theres already a folder, so just creating a part")
    local PartG = Object:Clone()
    local Part = PartG
    PartG.Name = "UnPlaced"
    PartG.Parent = game.Workspace:FindFirstChild(Player.Name.."Folder")
  end   
end)


Mouse.Move:connect(function()
    if Mouse.Target.Name == "Grid" then
        print("The target is a grid!")
        local Folder = workspace:FindFirstChild(Player.Name.."Folder")
        if Folder then
            print("Found the folder!")
             local Part = Folder:FindFirstChild("UnPlaced")
              if Part then
               if Mouse.Target.Parent.Parent.Owner.Value == game.Players.LocalPlayer.Name then
                print("Found the part")
                Part.Position = Mouse.Target.Position
                Part.Anchored = true
                Part.CanCollide = false
                Part.Transparency = .5
                Mouse.Button1Down:connect(function()
                  local Fold = game.Workspace:FindFirstChild(Player.Name.."PlacedParts")
                   if Fold == nil then  
                     print("Mouse button 1 was clicked")
                     local Fold2 = Instance.new("Folder",workspace) 
                       Fold2.Name = Player.Name.."PlacedParts"
                      local PlacingPart = Fold2:FindFirstChild(Player.Name.."Part")
                      if PlacingPart == nil then    
                       Part.Parent = Fold2
                       Part.Anchored = true
                       Part.CanCollide = true
                       Part.Transparency = 0
                       wait(1)
                       Part.Name = Player.Name.."Part"
                     else
                    local PlacingPart = Fold2:FindFirstChild(Player.Name.."Part")
                   if PlacingPart == nil then   
                       Part.Parent = Fold
                       Part.Anchored = true
                       Part.CanCollide = true
                       Part.Transparency = 0
                        wait(1)
                     Part.Name = Player.Name.."Part"

                                     end
                    end
                     end    
                end)
                Mouse.KeyDown:connect(function(key)
                if key == "r" then
                         print("The R key was pressed!")
                            local Fold = game.Workspace:FindFirstChild(Player.Name.."PlacedParts")
                   if Fold then 
                    print("Folder was found")
                     local Part = Fold:findFirstChild("Unplaced")
                      if Part then
                         print("Part was found")
                        Part.Rotation = Part.Rotation + Vector3.new(0,15,0) 
                      end
                    end

                       end
                                   end)
        Mouse.KeyDown:connect(function(key)
                if key == "x" then
                         print("The X key was pressed!")
                            local Fold = game.Workspace:FindFirstChild(Player.Name.."Folder")
                   if Fold then 
                    print("Folder was found")
                     local Part = Fold:findFirstChild("Unplaced")
                    print(2)
                      if Part then
                        print(1)
                        Part:Destroy()
                      end
                    end

                       end
                   end)     
            end
        end
            end
    else
        print("")   
    end
end)


--[[Mouse.Button1Down:connect(function()
    print("Mouse was clicked")
     if Mouse.Target.Name == Player.Name.."Part" then
        local Part = Mouse.Target
        local Fold = game.Workspace:FindFirstChild(Player.Name.."Folder")
         if Fold then
            local Hasp = Fold:FindFirstChild("UnPlaced")
            if Hasp == nil then
                Part.Parent = Fold
                Part.Name = "UnPlaced"
            end
        end
    end
end)--]]