The Bounty Hunter story quest "Meeting the Admiral", in which you need to speak with Lieutenant Major Pirrell in Hangar Bay 59 on Balmorra, is not advancing past the first dialogue choice available (where he says "Ah, there you are. Just in time--Admiral Ivernus's shuttle has already arrived. I hope you're ready."). The game hangs up and will not advance no matter what dialogue option you choose or if you try to spacebar through it, and sits there until you press escape.
I've tried resetting the phase, resetting the quest, logging out and back in, restarting the client, and deleting the DiskCacheArena file in the SWTOR folder, all to no effect. Any assistance you can render would be greatly appreciated.
Server: The Harbinger
Character Name: Minerva Gungrave
EDIT: The issue seems to have resolved itself upon logging back in earlier today, not sure how or why.