I have had the same bug as well.. On the topic of Shade bugs, this has yet to be adressed as far as I know:
http://forums.maplestory.nexon.net/discussion/3693/shade-s-liver-drop-rate-duration-reduced-in-v-177
I'm just gonna bump this.. After migration I was really looking forward to the improved Hyper Skill, just to see it be more lack luster than it's supposed to be... Also the Spirit Incarnate bug w/ Fox Spirits is still not fixed...