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.