Essence Rare didn't drop any loot in Hideout Unlock Map. Also, zero XP.

I went to clear out a hideout map. It got an essence from my waystone, and the mobs were level 68, as was my character.

I got NO XP, despite having to use 5 waystones to finally beat the map (The entrance wasn't far enough from the initial mob spawns and, of course, was very narrow, giving almost zero dodging room)

When I checked my XP, it was exactly the same as when I entered the map, and on top of that, the rare essence enemy dropped...nothing. Not even the obligatory essences.

I encountered this same issue today, clearing out the Limestone Hideout map, died once, the second attempt my map spawned two essence encounters, but neither dropped anything, not even an essence (despite one of them claiming to drop two).

Hardly anything dropped the entire map, I even turned off my loot filter to be sure, and the area was packed with magic packs and rare monsters.