So I disassembled that God awful sniper rifle that you have in your primary slot and also an exotic chest piece. I had 3 exotic shards all together. Have had them for weeks. So my Titan maxes out her exotic helm and I go to apply the upgrade but it says I have no exotic shards. So I checked other two characters and the vault but they have just vanished :-/ Have now destroyed my Suros regime which I really liked... I have been playing from midnight to now (10:17 AM) and I had them at like 6 for definite. Not sure if it's what caused it but I did get disconnected a couple of times one of which gave an error code 'fly'