I have seen the same bug and these are my answers. As a healer it’s very annoying not to be able to heal people!
We're currently looking into this and investigating. Right now, we have not been able to repro the issue on our side, so the team is interested in knowing the following information:
[*]Do all group members see the same player as dead/in that same state?
Not everyone sees the same people as dead.
[*]How did the player/affected player die?
The matter of death doesn’t matter. It could be from dying to damage during a boss pull, or a /stuck due too many people dead and wiping to pull the boss again.