Well same old story with mobile device bugs. Apart from graphic glitches in the subdirectories of the menues, the game now crashes every time i try to start AoO solo challenge. Looks the Hearthstone App is dead on mobile devices, as problems get worse with every bit (and byte 
) of data of content added, goes on over a year now with no fix or improvement yet.
OS: Android 7.0
Model: Samsung Galaxy Tab S2