GC > New Groups Paradigm Bug

Application.js

import ui.TextView as TextView;
import ui.View as View;
import device;
import animate;
var gx = Math.ceil(device.width/20);
exports = Class(GC.Application, function () {
  this.initUI = function () {
    // A note
    new TextView({
      superview:       this.view,
      width:           device.width,
      height:          (gx*2),
      color:           '#FFFFFF',
      text:            'Tap to shuffle, view the console'
    });
    // Create some randomly placed views
    var myviews = [];
    for(var n=0; n<10; n++){
      myviews.push(new View({
        superview:       this.view,
        x:               Math.random()*(device.width-(gx*2)),
        y:               (gx*2)+Math.random()*(device.height-(gx*4)),
        width:           (gx*2),
        height:          (gx*2),
        backgroundColor: '#'+('00000'+(Math.random()*(1<<24)|0).toString(16)).slice(-6)
      }));
    }
    // Tap to animate a randomly-sized group of views
    this.view.on('InputStart', bind(this, function(){
      console.log('-- NEW ANIMATION --');
      fyshuffle(myviews);
      var l = Math.floor(Math.random()*myviews.length);
      for(var n=0; n<l; n++){
        animate(myviews[n], 'mygroup')
          .then({
            x: Math.random()*(device.width-(gx*2)),
            y: (gx*2)+Math.random()*(device.height-(gx*4))
          }, 500, animate.easeOutBounce);
      }
      var g = animate.getGroup('mygroup');
      g.removeAllListeners('Finish');
      g.once('Finish', bind(this, function(){
        console.log('callback fired!');
      }));
      console.log('Expected group size: '+l);
      console.log('Reported group size: '+g.anims.length);
    }));
  };
  this.launchUI = function () {};
});
// Fisher-Yates Shuffle
var fyshuffle = function(array) {
  var m = array.length, t, i;
  while (m) {
    i = Math.floor(Math.random() * m--);
    t = array[m];
    array[m] = array[i];
    array[i] = t;
  }
};