Help Pls Im Feeling Quite Frustrated Here

in the quest called desperate metal, the boss at the end is not dropping anything

after i kill the first part of the boss with much trouble, as i use fire and water dmg against it (its def), it spawns the second part of the boss. once i kill the second part of the boss, it just disappears, and drops nothing

after around 10 seconds, the first part of the boss spawns again, forcing me to kill it twice again and dropping nothing again, leaving me no choice but to kill myself

is this quest bugged or what

 

the boss has 3 phases, but sometimes it bugs and the third one doesn't spawn. Just retry.

 

oh well, time to kill him a 3rd time