I exported my game, and noticed that there seems to be a universal bug for sounds. Basically, as far as I determine, whenever a sound is first played, it has a 3 or so second delay before it actually plays. Subsequent plays of the same sound are OK.
Also, Firefox has a problem with music looping.
As a final note, the very annoying 8-directional bug (where you get 'stuck' in a direction) in chrome still exists.
Thanks, sqiddster
EDIT: I also noticed that if too many of a sound is playing at once, it becomes distorted. Not just in export.