
I had full life and fortify since I didn't take any damage fighting Goblin.

“In last room of this section I saw Goblin, there were no other monsters nearby (one monster left for task, no other marks on minimap). “I had more than enough damage reductions and armor to tank anything, all previous explosions from Death Pulse affix caused almost no harm,” faraddox said.

Diablo 4 player “faraddox” took to the Blizzard forum to report his character death as a bug, complaining about the loss of their Hardcore level 60 Druid while in a tier nine Nightmare Dungeon with the Death Pulse affix enabled.

Some players believe the Treasure Goblin Death Pulse is doing way more damage than it should, so much so they reckon it's bugged.
