When the host logs out, then the other players still is on the server, and when he gets out, all of the changes made in the world after the host logs out is removed.
P.S. this bug is on all versions and both game modes.
MCPE-1719
Multiplayer Bug
Resolved
Duplicate
0
Jae Yoon Kim
(Unassigned)
Unconfirmed
Tablet - Android - Other (Specify in description)
multiplayer
0.5.0, 0.4.0, 0.6.1
Retrieved
This is not the "duplicate"
The "duplicate" does not involve 0.6.1, and is not just multiplayer.