Wrap Effect

Hi, I was using the wrap effect on a layer to create some waves on some bubbles I am working in. Everything was going fine until I added a layer behind the bubbles' layer (up until then I only had one layer) to put some background and the wrap effect stopped working. It seems to work again if I also add the wrap effect to the background layer, but that's not what I want. Is there a way for the wrap effect to work if it's not on the last layer?

It's working fine for me, can you post the cap?

Here it is, if you erase the bottom layer it does what I want it to do.

dl.dropbox.com/u/70255203/burbujas.cap

Edit: I just fixed my issue, it was not a problem with the wrap effect. I programmed the bubbles to spawn on layer 1 as I only had one layer when I started, and I forgot to change to spawn on layer 2 when I added the second layer, so the bubbles were spawning in the background layer that had no effect applied to it. Sorry for the inconvenience

<img src="smileys/smiley17.gif" border="0" align="middle" />