Return of Reckoning

Greetings and thanks for the help
Funnel essence does not work when I use it on other players. You can see it in this gif

https://gyazo.com/16bf464f29fb7181569c73637ad8ebb5

I try to heal a dwarf named Fokay and nothing appears in the combat log. Neither does the visual effect appear.

But funnel essence if it works when I use it on me. You can see it in this gif

https://gyazo.com/2d57f5b52ae3a7f9e8f77fa297395500

I have asked other archmages, they work well. What can I do to fix it?
I can´t use Funnel Essence in pve.

Thanks so much for the help

already in bugtracker.
both you and healing target have to be flagged for rvr.
you'll find AM asking /rvr in dungeons.