Raid boss disappearing issue

My boss disappeared!!!! Whats the deal with that.

Mine too,,, I guess you have to kill it quickly..

Mine stayed like 4 hours

There's a lagging issue with the raid boss....

same here.
there should be 200 boss essence compensation huehuehue

My boss has been appearing so rarely that I forgot about my lat raid boss and didnt kill it in time.

I just encountered a boss and went to the boss raid activity to dish out some beating into it, but it was not there. This was just well under i think 15 minutes.