Invencible Glitch Again?

[Rackat]

Unless they have fixed it, there is a bug in the undead raider bosses - particularly Darkheart.

Stand about 5-6 steps from the rock at the bottom of the ramp that leads to Darkheart.
Used a ranged attack weapon such as the pistol or grenade.
Darkhart will come to the bottom of the ramp throwing daggers.
As long as you do not approach or run away, he will stay on that spot.
After throwing his daggers a few times, he puts the daggers away and switchs to his fighting stance with dagger in hand.
Once he switches to the fightiing stance, he no longer throws daggers
So long as you do not approach or leave until he is dead, you can stand there and take him down.

I have reported this to Disney several times. Hopefully they will fix this soon.