I've noticed that when I prematurely deactivate (while in expeditions) the AoA, during the transformation there is quite a bit of delay before my character returns to human form.

During this, enemies also seem to "freeze," as if they are desyncing with the delay.

This happens nearly every time the AoA is used while in expeditions. Even if the bar completely depletes, the delay before transforming back into human form causes enemies to freeze.

On-screen, it looks and feels almost like a server lag spike does.