Earlier today while turning in a few bounties I received the option to chose between a few Exotic Weapon Bounties. I selected one and went back to Orbit so I could go to the corresponding strike to complete the bounty. When I landed on the planet I checked to make sure that I had everything ready and noticed that I didn't have the bounty any longer..... Where is it? Please do not tell me that I just lost my chance at an Exotic Weapon. Please HELP!