I just discovered that your game ate six skeleton keys. Yes, six. I had five on my character and one at the postmaster. Finally went into a Strike that I wanted to use a key in only to discover that I didn't have any. Yes, I know for a fact that I had keys on me. And since you likely don't have a way to verify it, or a means to fix it, it means I have to grind out dozens more strikes to get more keys, after already grinding out dozens to get the ones I had. Of course, there's always the possibility that those could disappear as well. This is the kind of crap that makes users stop playing. Just saying.