I've found lots of broken events over the last couple of days.Then to top it all I did pre event for the Shatterer, waited for ages, fought the thing. Got nowt.
What level are you? I found that when i did the Shatterer at lvl 48 i didn't get rewarded, i think because i couldn't do enough dmg to the boss, also had trouble targeting it when i did it. Tried it 3 times and still no reward, but when i hit lvl 50 and tried it again i got rewarded, so not really sure what's up with that.
Then to top it all I did pre event for the Shatterer, waited for ages, fought the thing. Got nowt.

But best you be careful we have pitchforks! 
.. I've played since head start and still haven't got a character past level 30.
