Originally Posted by
riverly
according to page 1 , goal 9 does Summon Heska. Tidegate has to be L6. I'm not too sure if it makes a difference, but don't have any other beasts on board. If you've done all that, maybe do a restart, check your version of the game, or contact support. I co not recall anyone else posting a problem- but it's been a long time since I've finished that goal.
If you're doing current goal with the fairy wedding, you might want to wait before you fight Heska. That takes a lot of energy.