Hi Adventurer,
Unfortunately, this is currently indeed a bug in our game. Due to certain restrictions in our UI design, this will not be fixed until our next major release in which we address tablets such as an iPad.
Some users have found that rotating it may make the edges work just enough to tap them, but this varies per model.
Sorry we couldn't be of more service here. Hope it helps somewhat!
Stay awesome,
The Curse of Aros team.