Servers are still freezing when you exit the game on your phone to do something on it really quick, or when you pause it and turn it off.
MCPE-20451
Server are still freezing when paused
Resolved
Invalid
0
(Unassigned)
Unconfirmed
Phone - Android - LG Nexus 5
Android 6
Server
1.0.4.11, 1.0.5.3
Retrieved
Sorry, but this ticket has been resolved as invalid. Mojang cannot control how servers will react in different situations.