WotLK Bug mage quest : Investigate the Blue Recluse

[apolita68160]

Hello guys, I seem to be having issues with the human mage quest "Investigate the Blue Recluse." After using the Cantation of Manifestation, the game spawns 4 Rift Spawns, and after subduing them, they become stunned, and I go to use the Containment Container, however, it won't work, and continues to say that I need to use it on a stunned Rift Spawn, which is what I am doing.

[Xantay1]

Same goes for me

[skullatbash]

Same goes for me

Check staff comment of this report: https://www.warmane.com/bugtracker/report/56318
It is about TBC realm but it might help:

Works fine for me.
http://tbc.cavernoftime.com/item=7308 need to use this at correct locations to change them from invisible to visible.
They only stay for 30-60sec at the 1% hp, so need to use the coffer pretty quickly. However be careful as depending where you use the scroll, you can pull a lot of them at a time.
If no NPC spawns, they take 5min30sec to respawn. So you might have to w8 for the scroll to work.