We are aware of an issue with the Hero Ahhotep which can, in very rare cases, cause an ongoing battle to become unresponsive. Once affected, the player will have to either flee or force close the game.
Fortunately, it is quite unlikely that a player will trigger this bug during normal gameplay.
We are currently working on a fix for this and plan to deploy it with the Version 48 update. Our apologies for the inconvenience caused. Thank you for your understanding!