Grand Company quest progression error

Time: 11:39 AM CST
Frequency: Always
World name: ADAMANTOSE
Character name: Carlie Glitterfox
NPC name: Swift <Flame Commander>
Class/Level: Archer Lv.50
Party or solo: Solo
Area and coordinates: Ul'dah Hall of Flames (8, 8)

I was given the Quest "Shadows Uncast" by Swift <Flame Commander> to complete Dzemael Darkhold. I went and completed the dungeon and it moved the quest to completed, but it wont let me talk with Swift <Flame Commander> to turn it in so I can request a higher rank. I even ran the dungeon a second time last night and it still is not letting me talk to Swift <Flame Commander> to say I have completed the dungeon. My friends who ran the dungeon last night with me were able to turn it in to Swift <Flame Commander> and go up in rank. PLEASE HELP!