After reaching act 5 as an Aeon, I decided to become a gold dragon. The abilities it had made me want to retrain, and normal levels went fine, and so did level 1-2 of mythic levels, but after that I am unable to pick anything to level into. My only option is gold dragon, but that option is greyed out.
A solution could be to offer mythic hero as an option to level into more.
Otherwise do anyone else know of a solution?