I'm trying to complete "The Fall of House Cortess" on Alderaan, and I'm at the part where I have to expose the generator core, however, when I try to complete the action, it says "You must have Vector Hyllus with you to do this." I haven't played on my agent for quite some time, but I go to my companions tab to find him and I only have the ship droid and Kaliyo. Is this an actual issue, or am I just forgetting something?

Issue Resolved: With a bit of internet digging, finally stumbled upon a post on the official site forums and learned that resetting the quest (While outside of the quest zone, otherwise the option isn't available) did the trick! Hope this helps anyone having similar issues!