Not sure if this is a bug or I am extremely unlucky. I was doing the raid for the first time last night and we made it to the last boss (haven't completed it yet). After the first two bosses we found the chests and looted them. My group were all excited about the loot they were getting while I got nothing, not even material or anything. One Siva chest gave me 10 strange coins but the main boss chests gave nothing. I checked my postmaster after each fight and all there was there were a bunch of blues and greens. I'm wondering if there is a chance that nothing at all drops from the chests or that it bugged out and I didn't get anything.