Act 3 hyena boss bugged

1st bug - if you run down the ramps to lure him away from the spear throwers he heals and resets to pre engagement position and becomes invincible. If you wipe and do kill him he drops loot but the cliff adds jump in swarm you kill you and boom you lose the loot. Horrific. I stopped playing, just had to walk away to cope with the feeling of YAY....AWWWWW. please add a delivery system of unclaimed loot to stash like D4