Vampiric Curse recourse blocked by Disease Cloud
 

I'm not sure if this is intentional but it doesn't seem to make sense to me. VC works fine (the DoT aspect) if I have DC on me, however the recourse buff and healing doesn't get applied. Other dots like Boil Blood don't seem to block the recourse. Seems like a bug...

What level are you?

I am level 60 and I just tried casting Vampiric Curse on a mob. They take damage but I am not being healed. So yes, something is weird.
My guess is that the healing-effect doesn't work on you when you have reached a certain level. If that is a bug or not, I have no idea.

Can some necro around level 50-59 test this? Cast Vampiric Curse on a mob and see if you're getting HP back.

EDIT:
False alarm from me. What tricked me is that Vampiric Curse doesn't give log entries telling that you're being healed. Vexing Mordinia does this like "Soandso has healed you for 122 points of damage.", but neither Vampiric Curse or Bond of Death have log entries like this, but they are healing you.

So yes, Vampiric Curse DOES heal, but it won't be written in the log.

When you have DC on you?