I have a similar problem, but it's happening in Quest not Story.
Kyra fought Faceless Stalker henchman and the scenario made me fight an Ancient Skeleton next. Her power to Heal when defeating an undead monster popped up and I have the Continue and Heal options like everyone else is reporting.
But whichever option I pick, the game just locks up. I can't bring up the menu to forfeit even, and closing the game, and relogging in and restarting Quest brings me right back to the same options. The Ancient Skeleton is on top of the location deck and the Continue\Heal menu is up, and no matter what I choose, the game stops.
I play on iPad Mini, but I don't know if that matters.
Is there a way to rest the Quest adventure I'm running? I don't seem to see this as an option in the menus. I don't mind losing the adventure, I would prefer not lose my experienced characters however.
Anyone have any suggestions? This appears to be a nasty bug that is affecting several users. I've seen some minor bugs before, but restarting the Quest has always fixed my issues in the past.