hee bungie, i too am one of the many people that got his keys deleted. i finally completed the raid for the first time. me and my fireteam went into orbit, i checked which keys i had (engine, ventilators and armory), immediately went back into the raid. when we got to the first chest i could not open it and i noticed that my keys were gone. i did none of the things you warn the community about that could make you lose your keys, yet i still lost them. i sincerely hope that there is a way for you to restore my keys to me (although i doubt it because so far i haven`t read anything about it). and i do hope you understand that this issue severly hampers the fun players have in a important part of the game. allthough honestly if i don`t get my keys back i would also be happy if everyone that lost their keys got a rare exotic emblem stating how many keys they lost because of one of destiny`s bugs or glitches XD