Guild Wars 2

I have been trying to get this hint for over 5 hours. The has hint popped up for about 5 or 6 times, when my life for is at full at random times and then I do not get credit for it in my hints tab. I have made over 7 Necromancers trying to get this. I imagine this should be easy to fix please help. Thanks

update I now got it by clicking on the actual text when it pops up still a bit buggy though for having to be that way.