Huge Gaping Hole in World

I know that this problem has been reported before, but all those reports say 'resolved' when it really isn't. I made a new creative infinite world. I played it for a bit, then logged out of minecraft PE. When I log back in, there is a gigantic hole that goes all the way to the void right underneath my player.

What I Expected To Happen Was...
When I logged back in, the grass would actually be there.

What Actually Happened Was...
There was a hole that went straight to the void.

Steps to Reproduce:
1. Create a new world that is creative, infinite, cheats are on, and always day is on. No multiplayer.
2. Play for a few minutes then exit out of the world. Don't press save and quit. Just leave.
3. Come back another few minutes later. There might be a hole underneath you.

I was on the seed -2052996851 and my device is a Samsung Galaxy Tab E if that is any help.