I just went through the raid for the first time this week and our group got 3 keys. We finish the final boss fight, go to orbit then back in to get the chests. We get to the first chest and I find out ALL of my keys disappeared from my inventory! Everyone else in my group still had theirs. The same thing happened last week, but with only one key so I didnt report it. It sucks to do all that work and miss out on four chests.