Minecraft keeps crashing when I try to load up any world.

This morning I downloaded the new version of minecraft pocket edition, since I have downloaded this version my minecraft worlds can not load up and they just crash. what happens is I press the world I want to open, then it struggles to generate the world then it crashes and goes back to my iPad start screen.
This has got to be a bug as this has not happened on 0.15.0 or earlier versions. I have done some research and some people have had the same problem. I would be very great full if you could look into this further.