Checked on this TB since a previous finder stated it was not in the cache and indeed, someone has retrieved it without logging it out. There is no mention in the cache logs and nothing in the physical logs to indicate when it was picked up or by whom. Since it no longer resides in the cache it shows in, I'm going to mark it as Missing and that will move it to an Unknown Location. If it gets placed in a new cache and someone retrieves it, all they need to do is Grab it and it will move to their inventory so they may drop it into a new cache. Sorry that your bug went missing and here's hope that it returns quickly.
Bruce