Bug?: layers.add() is not working properly when invoked from menu (ID/CS6/Win7)

Question

Hello Devs,
I am facing a mysterious issue with the layers.add() method.
I am trying to create n number of layers for my document. So I have decided to create a menu for this.
I have creatd two scripts
1. For creating menu & menu action,
2. Actual script that creates n number of layers.
When I run the script #2 direclty from ESTK it works fine.
Now when I try to invoke the same script from the Menu it is not working fine. Only the last layer is created.
Script 1: LayerPopupMenuAction
#target indesign
#targetengine createLayerset
var layerTemplateScript = File(File(getActiveScriptPath()).parent.fsName+"/IntializeTemplate.jsx");
var initTemplateHandler = {
    'beforeDisplay' : function(ev)
            ev.target.enabled = (app.documents.length>0);
    'onInvoke' : function()
            app.doScript(layerTemplateScript, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.FAST_ENTIRE_SCRIPT, "Initialize Script");
var layerMenuAction = app.scriptMenuActions.add("&Create Layer Set");
for(var init_ev in initTemplateHandler) {
    layerMenuAction.eventListeners.add(init_ev, initTemplateHandler[init_ev]);
var refMenuItem = app.menus.item("$ID/LayerPanelPopup");
refMenuItem.menuItems.add(layerMenuAction, LocationOptions.AFTER, refMenuItem.menuItems.item(2));
function getActiveScriptPath() {
    // This function returns the path to the active script, even when running from ESTK
    try {
        return app.activeScript;
    } catch(e) {
        return e.fileName;
Script 2: IntializeTemplate
#target indesign
if (app.documents.length == 0){
    alert("Please open a document and try again", "Document Error", true);
    exit();
var templateDoc = app.activeDocument;
var layerNameArray = ["Fixed_Static_Assets", "Absolute_User_Assets", "Relative_User_Assets"];
CreateLayers(layerNameArray);
alert("Initialization Successful");
//--------------------------------FUNCTIONS ARE DEFINED HERE--------------------------------
function CreateLayers(LayerNameList){
    var layerListLength = LayerNameList.length;
    var layerObject;
    for (var ln=0; ln<layerListLength; ln++){
        layerObject = templateDoc.layers.itemByName(LayerNameList[ln]);
        if (layerObject.isValid==false){
            layerObject = templateDoc.layers.add({name:LayerNameList[ln]});
            //$.writeln('Layer Creation: ' + layerObject.isValid + ' for '+layerObject.name);
    //Merger Default Layer with the bottom layer:
    var defaultLayer = templateDoc.layers.itemByName("Layer 1");
    if(defaultLayer.isValid==true){
        //$.writeln('Default is Valid and will be merged with top most layer');
        layerObject.merge([defaultLayer]);
Any help / guidance on this regard will be much helpful.
@Marijan Tompa [tomaxxi]: I googled for the solution and noticed that you have already worked on similar type of script. Please help me if you can.
Thanks
Green4ever

Answer 1

Hi Green4ever,
At a very first sight I'd suspect UndoModes.FAST_ENTIRE_SCRIPT which, as you may know, can deeply scramble script steps, especially when a try...catch is in use.
Try to replace FAST_ENTIRE_SCRIPT by ENTIRE_SCRIPT and tell us.
@+
Marc