Inventory Clearing in Multiplayer

When playing on MCPE with my brother, there is such a thing as real world responsibilities for which we must leave the world. What also may happen is a game will crash or a battery will die or an apocalypse will occur but a world will be closed and a game will be stopped nonetheless. When the world is reopened, my inventory will sometimes be cleared, with the items not in a chest or on the ground. My armor, with its enchants and damage values and names, is still on me, strangely enough.

What I expected to happen was when I rejoined the world I would have my items.

What actually happened was when I rejoined the world I did not have my items.

Steps to Reproduce:
1. Open world
2. Have items
3. Close the world
4. Open world
5. You may or may not have your items. You will still have your armor.

Extra Notes:
The world is always hosted on a Samsung Galaxy S4, Android 5.1
The items, when lost, are always lost by a player on a Nexus 6, Android 6.0
There may be a correlation between if either the host or the joiner (or both) have restarted their phone in between openings of the world
This bug may be specific to survival