Game Over and coming back to Main Menu

Hello,

I have some routines for realizing a GameOver and coming back to the main menu allowing then to restart a new game. Unfortunately once i reach the menu there is a delay of at least 10 seconds, during which the mouse pointer isn't controllable. Someone there who knows why or what to fix to avoid this delay?
Thanks a lot
Dirk

The core for this is build by following three functions:

function displayGameOver()
{
$GameOverImage.setPosition("0 0");
$wells.setAutoRotation(20);

schedule(2000,0,"Neustart");
}


function Neustart()
{
endGame();
canvas.setContent(MainMenuGui);
canvas.setCursor(DefaultCursor);
}


function endGame()
{
//sceneWindow2D.endLevel();
for ( %n = 0; %n < $activeStuff1.getCount(); %n++ )
{
%obj = $activeStuff1.getObject(%n);
%obj.safeDelete();
}

if (isObject($player))
$player.delete();

if (isObject(t2dScene))
t2dScene.delete();



}