Blogspammers managed to break and foobar my MoveableType commenting system while I was on vacation for 2 weeks. However, comments like this remind me why I slave so hard to ensure it’s easy for readers to comment on my blog.
Since commenting is currently disabled till I fix it, here is the comment that got lost in a black hole, but brought to light a reason behind a problem I was having.
This was driving me nuts, too. The answer is here. The long and short of it is if you are
using a button component in your movie and create, duplicate, or attach a
movieclip using _root.getNextHighestDepth(), the movieclip’s depth will be
1048576, at which depth the mc.removeMovieClip() method will not remove the
clip. It is important to remember that other components rely on the button
component for functionality, and so components like UIScrollBar will also
trigger this bug. In addition, the component does not have to even be on
stage; having the component present in the library is enough to provoke this