Okay so I was loading a world (Note I had weak wifi) and upon loading it it just froze. It stuck for a while before unfreezing, but it crashed. I tried again but it kept crashing the same way.

To reproduce-
Get into a weak wifi, or a wifi that's screwing up.
Then go into MCPE and attempt to load a world.
Wait for a while for it to unfreeze. Sometimes the world loads but sometimes it crashes.
Repeat as many times as you want. Same thing happens