This is below minor(Lower than a missing parenthesis? Eh, maybe on par with), but when importing a .vap fails(tested with an empty file), VoiceAttack switches to the first profile in the profile list.
It's probably farfetched, but if someone's already annoyed because the .vap is broken, they may not notice the profile swap, and then get more annoying when their commands stop working.
EDIT: Changed/Fixed in v1.6.4.6