We have just completed this HC flash point it was hard i was healing, alot of aoe healing the last boss tactics is to kill the healer first then the main boss then the other one who casts a shield on the main boss, we tried doing it like kill healer then the shield generating dude but the main boss was nuking us for alot of damage was hard but we pulled through it after wiping for about 45mins. lastly we couldnt loot the chest after the boss, bug of course but we ticketed and hopefully they can resolve the issue.

This issue happend to me in a heroic instance aswell. i was using kolto injection couple of times then later on any heals wont land on tank at first i thought the tank LOS me so i was running around, but then i noticed it was some kind of a bug not letting me land my heals. it kinda casts until it finishes but dosent heal it cancels at the last sec. i kept spamming then it worked fine but it kept creeping up at me sometimes.

idd it is hard for a merc healer to heal this fight he does alot of damage but as sith inq healing no problem. he does usually do the 1shot kill when hes invisible i had a shield on me and still i died with full hp.