I was doing the Dragon soul raid on 25m heroic for the mounts (Goriona encounter). Goriona physically landed on the deck on the ship, instead of flying off into the distance. I couldn’t go onto the spine encounter unless I killed my character, because I marked as ‘still in combat’.
I had this happen yesterday, it wouldn’t let me take the portal. I could see the dialogue from the fight still going on “Goriona/broadside” etc. I logged out and left instance and it was still doing it. After about 7-8 minutes it let me go back in and restart the encounter. Weird bug had never seen it before been running place for two+ years.