I experienced this bug too. I believe it may have something to do with buff preservation. I was guild res'd in damien and I couldn't attack or flash jump for about 20 seconds. Also had this issue in lucid with everyone in the party.
Item type (Hair/Face/NX Item/Pet): Hair
Item name (English/Korean): Mega Layered Hair
Website link (where the item was seen, including previous cash shop rotation link): http://maplestory.nexon.net/news/19876/cash-shop-update-12-28
Image of item:…