Exporting typewriter text from FCP.

I’m trying to export a five minute trailer from FCP 6.0.4. Have tried both compressor and direct to QT. But in both cases, the text clips at the end of the piece are gone when I look at the movie. I imported a new font for the text. Is that the problem, or could it simply be the typewriter text function? Or interlacing? Will eventually use motion for this, but wanted to have it to send to clients for approval before moving on to that phase. Any ideas? Thanks.