[BUG] Quest ID 85486 "Soul of Enthralling"

[fredbeatdad]

1. Current Behavior

1.1. Description

{Describe how that mechanic/spell/npc is currently working, in detail}
When you kill the cursed mage in the ziggurat while on the quest "Soul of Enthralling" for the Warlock class item quest and then use the scroll it drops on the demon it doesn't give you the soul stone. If you then try to wait for the respawn of the aforementioned mage, it will be invisible and you cannot kill it until you retake the quest.

1.2. How to Reproduce

      {Describe the steps to reproduce the particular bug, in detail:
       1. Take quest
       2. Kill Cursed Mage in Ziggurat
       3. Loot Scroll and use it on the portal in the same room
       4. Kill the demon that spawns while using drain soul.

1.3 Source Material

https://youtu.be/KE2wvtPtkqk -- kill video
https://youtu.be/pMHQOBm_0_k -- invisible mage video

2. Expected Behavior

2.1. Description

{Describe how that mechanic/spell/npc should be working, in detail}

You should get the soul stone from the quest while on the quest and while you use drain soul on the demon when it dies.

[fredbeatdad]

Unsummoned the Felguard and did not use Metamorphosis and killed it again and got it this time.