Hey Tuanha,
I already wrote you a PM about this concern:
During the fight of Ko'ragh Mythic, there are ppl in the raid who absorb the orbs who get mind controlled. Your CR tries to heal those mind controlled players and gets stuck, which leads to a massive HPS loss (37k hps with 680 ilvl).
Another thing I'm worrying about is the overheal at that fight. I healed 9,85 Million and had a total amount of overheal of 10,42 million, meaning that more than 50% of my heal leads to overheal.
We're facing Ko'ragh again on sundays, so I can provide some logs. Till then, I hope you can have a look at that issue, especially with the mindcontrolled ppl in the raid.
Best wishes,
Jones
EDIT: Another issue I forgot to mention: The CR sometimes clears the target @Brackenspore when targeting the mushrooms. Whenever I stop the CR, I can target them without any problems.