yeah i have that same issue. when i log into a character and use the heroic abilities during battle, the bar will show up after exiting every cutscene following their activation, even if the abilities are currently on cooldown. they only disappear once i reactivate heroic abilities and manually remove the heroic moment by right-clicking on it. that's only temporary however, after the next cutscene they'll be right back on my screen with no intention of leaving.