Hello.
Actually it bugs because you are flying - so you do not get the extra change button. Temporary fix:
Leave that quest area.
Go to ground mount. ride in and it will be ok.
Hope blizz will fix it soon.
9 Likes
Have you already reported this ingame so it can be fixed? CS doesn’t handle nor forward these.
Magical Bug Report
http://eu.battle.net/support/en/article/reporting-a-bug