Hi Dellza,
I can confirm that Dragon Soul is half working. It gathers most of the mobs (it misses most of the humans at the portal as you mentioned, but also misses some of the elementals nearby), brings them to the entrance, kills them all. All is fine until the loot part...it doesn't loot! It runs outside, resets, repeats, but never seems to loot corpses even with 'loot mobs' checked in HB settings.
Each run/pull brings in 34-40 pure gold (as opposed to ~62gold pulling every single elemental and humanoid manually as I used to do) but it'd be great if it could loot!