Mojang white screen crash

Hi

My son has been playing minecraft on our Apple iPad for over a year. Was fine until a few weeks ago ... 2 or so ... but now on launch of the game the Mojang screen comes up , turns white and display goes back to the iPad home page. I reinstalled a few times from the Apple Store and reset iPad as suggested in some forums but nothing works to fix the problem. 

I see many people are reporting this issue. Would it be possible to obtain some feedback of what is causing this and if a version or fix will be released to fix it.

Thanks