Just grabbed the bounty for Downpour Captain, found him, killed him. Opened the chest, cleared out the whole lost sector of enemies. Didn't get any credit for it toward any triumphs related to it. Found other topics on here that suggested i be sure to pick up spider's bounty before I kill the target, and I absolutely did that. Am I missing something? Or do I just have to keep doing it and hope it doesn't bug out in the future?