Android Notification Intent doesn't start activity properly any more

What I want to achieve here is that when users click the notification, the app will open and switch to the corresponded tab within a tab group. It was working, but not anymore now. I can't find the cause. I did update the studio and sdk to 3.2.2, but even if I rolled back to an older sdk, it still didn't work. Example:

app.js

var tabgroup = require('tab');
 
var nNot = 0;
function notify(type) {
    var title = null,
        text = null, 
        url = null;
 
    switch (type) {
        case 'download':
            url = 'download.js';
            title = 'Downloading file...';
            text = 'Click here to see download details';
            break;
 
        case 'music':
            url = 'music.js';
            title = 'Music playing...';
            text = 'Click here to see music details';
            break;
 
        default:
            return;
    }
 
 
    var intent = Ti.Android.createIntent({
        action: Ti.Android.ACTION_VIEW,
        flags: Ti.Android.FLAG_ACTIVITY_NEW_TASK,
        url: url
    });
 
    var pending = Titanium.Android.createPendingIntent({intent: intent});
 
    var notification = Titanium.Android.createNotification({
        number: nNot++,
        contentTitle : title,
        contentText : text,
        contentIntent : pending
    });
 
    Titanium.Android.NotificationManager.notify(nNot, notification);
}
 
 
// create the downloading window
 
var win1 = Ti.UI.createWindow({layout: 'vertical'});
var btn1 = Ti.UI.createButton({title: 'Download'});
var lbl1 = Ti.UI.createLabel({text: ''});
 
var downloading = false;
btn1.addEventListener('click', function(e) {
    // not really downloading anything, just create a notification
    if (!downloading) {
        lbl1.text = 'Download in progress...';
        notify('download');
    } else {
        lbl1.text = '';
    }
 
    downloading = !downloading;
});
win1.add(lbl1);
win1.add(btn1);
 
var tab1 = Ti.UI.createTab({
    window : win1,
    title : 'Download'
});
 
 
// create the music page
 
var win2 = Ti.UI.createWindow({layout: 'vertical'});
 
var btn2 = Ti.UI.createButton({title : 'Toggle music'});
 
var music = Ti.Media.createAudioPlayer({
    url: "/somesong.mp3",
    autoplay: false,
    allowBackground: true
});
 
var playing = false;
btn2.addEventListener('click', function(e) {
    if (!playing) {
        music.play();
        notify('music');
    } else {
        music.stop();
    }
 
    playing = !playing;
});
win2.add(btn2);
 
var tab2 = Ti.UI.createTab({
    window : win2,
    title : 'Music'
});
 
tabgroup.addTab(tab1);
tabgroup.addTab(tab2);
tabgroup.open();

(function() {
    module.exports = Ti.UI.createTabGroup();
})();

var win = Ti.UI.currentWindow;
win.close();
var tab = require('tab');
tab.setActiveTab(0);

var win = Ti.UI.currentWindow;
win.close();
var tab = require('tab');
tab.setActiveTab(1);

<android xmlns:android="http://schemas.android.com/apk/res/android">
    <activities>
        <activity url="download.js">
                    <intent-filter><action android:name="android.intent.action.VIEW"/></intent-filter>
        </activity>
        <activity url="music.js">
            <intent-filter><action android:name="android.intent.action.VIEW"/></intent-filter>
        </activity>
    </activities>
</android>