Board Thread:Questions and Answers/@comment-6242639-20130201201635/@comment-5805589-20130201202334

I have the same issue. It would seem there is a glitch on their Event Main page. Where it used to have a "button" to get more details about the event, it now includes those details on the main page (overlaying/overwriting the part of the page that used to have your boss fight history).

So now if you didn't actually kill the boss, you can't pull the rewards. I am assuming that will be fixed, but I have not reported it, nor seen anything from them on the announcement page.