Mask doesn't play in Test Movie mode

[hohboy]

Here's the deal: basic mask. Couldn't be simpler: one word of text, an oval moving infront of it. No bitmaps
involved. The oval is converted to an instance of a symbol.

Now, to my understanding, this is the basis of a mask. The layers appear correct (locked, indented, etc.). What could
I be overlooking here?

Anyone? [sig][/sig]

 

[Horrid]

Masks dont work on dynamic text so that could be the cause of the problem. [sig][/sig]