We were on Mordremoth and one of our party members got lifted out of the instance when they hit an updraft. the party member was unable to re-enter the instance to join us – they were still in our party but unable to come in.
The upshot was that we were unable to finish Migraine with only 4 party members.
The other 4 party members were:
Alcano.9182
Chap.6439
JGrave.6748
TitanTyrant.6493
Alcano.9182 was the party member tossed out of the instance via the updraft.