Can play mcpe for about 10 to 15 minutes and then goes to the home page

Update 2 on the 9th January 2017....... Can play for a about a minute and then get kicked off the game and goes back to the home page 😞 Its now totally UNPLAYABLE. This issue is both some iPads and some android devices. I've heard Microsoft has taken over mine craft and they could be the problem why so many people are having problems playing mcpe.
Is it true that Microsoft has taken over? I'm thinking of not playing mcpe again and deleting mcpe from my devices.
I open a world up, play it for 10 to 15 minutes and then I get kicked out of the game and goes to the home page on my iPad 2. Please fix this issue.

UPDATE....... 20th Dec 2016 now I can play mcpe on iPad 2 for up to 2 or 3 minutes, screen just goes black then goes to home screen and is un playable.

This problem is in both modes creative and survival and playing on my network with my family and on my own. Please fix this problem asap.