version 1.2 laggy and causes crash

After update both iPad Minis regularly crash the game, after a few minutes of gameplay. The game will become laggy - jittery slow response to touch - and then crash to the iOS home screen.

I've tried reducing graphics settings - turned off Fancy graphics, reduced rendered chunks to 4, turned off Smooth lighting, etc - to no avail.

Both children in my house are greatly upset since the update, their happy gameplay turning to frustration and tears.

This issue is likely a duplicate of MCPE-26055 however I'm not allowed to link, let's have your bot do that.

Direction to report bug ticket: https://twitter.com/wadenick/status/912388067633225728