I have a similar problem.  It doesn't crash, but it gives me an error message and won't let me export.  I have the problem being worked on by Finale tech support.

Exported audio is full of static, interruption

Exported audio is full of static, interruption

That sometimes means you need to adjust your audio buffer under MIDI/Audio >Audio Setup.

It would help if you would tell us what computer operating system you use and what version of Finale.