Game Crashing on iPad Air

Since the update last week, Hearthstone is totally unfunctionnal on iPad Air 1: New Update Crashes on iOS , Ipad air, crashing/closing . Hearthstone can passes through the quest menu, but it crashes after clicking “play” button.

Its working rather well on PC (except frequent disconnect/reconnect for 1 game).

Can’t wait to use Hearthstone on iPad!