Hi,
that's very odd indeed, is it 100% reproduceable? can you isolate the animation in an empty scene with just the animation? if yes, can you send it to me?
Animations are very reliable, so could it be that in your fsm, you are not listening to the event at the time it's sent? maybe you did not plugged the sendevent properly, is it targeting the right fsm? is the gameobject/fsm enabled ?
bye,
Jean