Font dissapear after exporting

Hi everybody!
I’ve got following problem: As long as I’m on my flash-stage everything is fine and I can read my font. But when I export my file (I exported it with highest quality), two of the 5 names almost dissapear! I redid those names and checked: all the names are made exactely the same way. Still you aren’t able to read two of them.
Has anybody an idea what the problem could be? (before = on flash stage while working after = exported version)
Tanks for every help