Why does my script work In Play Solo, but not Start Server / Published to Roblox?

So here is my Script using .Touched and .KeyDown .

function debounce(func)
    local isRunning = false 
    return function(...)     
        if not isRunning then
            isRunning = true

            func(...)  

            isRunning = false
        end
    end
end

script.Parent.Touched:connect(debounce(function(player)
    if player.Parent and game.Players:GetPlayerFromCharacter(player.Parent) then
    plr = game.Players:GetPlayerFromCharacter(player.Parent)
print("Work1")
    mouse = plr:GetMouse()
        mouse.KeyDown:connect(function(key)
            if key:lower() == "r" then
            print("Work2")
            game.Workspace.Int.Value = true
            end
        end)
    end
end))

So as you see, when the player touch's the brick, it is supposed to print "Work1". This works fine in Play Solo, but will not print using Start Server. Why does this not work? All help appreciated, Thank You. ~ Xduel