The Latest Mystery

I am redoing something I did a few months ago, with a view to making the code better, and easier to manipulate.

Here's the thing, I've already done all of these techniques, and yet I am still coming across things that did not happen to me the first time around!

I have a movie clip with a z value, for some reason I don't understand, when I move my mouse, the event listeners on the movie clips 'under'/'behind' it, stop. Why?

Perhaps it is something to do with the perspective thing, but that didn't interfere with my Event.ENTER_FRAME events before?