I was playing A4 with my Wiz last night and those flying demons that come down, unfold their wings and then start attacking didn't actually unfold.

As you can see in this screenshot I took: http://imageshack.us/photo/my-images/194/screenshot001vwf.jpg/

It was very strange looking because they were floating towards me with no attack animations or anything. Just kinda hovering while invisibly damaging me.