[RESOLVED] World Limit problem with Fish tutorial

Hello,

I'm giving Torque 2D a shot and running through the various tutorials, specifically the Fish Game tutorial and part 5: Adding Gameplay docs.garagegames.com/tgb/official/index.html?content/documentation/Interface%20T...

I've got the fish food spawning at random points and speeds and being collected when it collides with the player fish object just fine. However the bit that makes the food respawn when it collides with the bottom of its world object doesn't seem to be working as the tutorial intends. Here's a screenshot of the editor with the FishFood class object selected. You can see what the world limit for the object is along with the Limit Mode being set to NULL and the callback checkbox marked

i.imgur.com/gBgJG.png

And here is the code for fishfood.cs

function FishFood::onLevelLoaded(%this, %scenegraph)
{
   %this.startPositionY = %this.getPositionY();
   %this.setLinearVelocityY(getRandom(%this.minSpeed, %this.maxSpeed));
}

function FishFood::onWorldLimit(%this, %mode, %limit)
{
   if(%limit $= "bottom")
   {
      %this.spawn();
   }
}

function FishFood::spawn(%this)
{
   %this.setPosition(getRandom(-50, 50), %this.startPositionY);
   %this.setLinearVelocityY(getRandom(%this.minSpeed, %this.maxSpeed));
}

function FishFood::onCollision(%srcObj, %dstObj, %srcRef, %dstRef, %time, %normal, 
    %contactCount, %contacts)
{
   if(%dstObj.class $= "PlayerFish")
   {
      %srcObj.spawn();
   }
}

That 'if(%limit $= "bottom")' never seems to be getting called either because callback just isn't happening or maybe %limit is a different value. I'm not entire sure how to debug this with the demo version of Torsion so I'm a little stuck there.

Does the code or anything I've done look wrong or is this some bug with the editor itself? Thanks for any help you can give.