When you lose hearts on a survival server you get damages of the amount of hearts you lost previously when back to this server.
MCPE-8039
The player get damages when connecting to survival servers
Resolved
Fixed
0
(Unassigned)
Confirmed
Phone - Android - Samsung Galaxy S5
Android 5.0 Lollipop
connecting, damages, life, multiplayer, server
0.10.5, 0.11.0 Beta 1, 0.11.0 Beta 2, 0.11.0 Beta 3, 0.11.0 Beta 4, ..., 0.11.0 Beta 7, 0.11.0 Beta 8, 0.11.0 Beta 9, 0.11.0 Beta 10, 0.11.0 Beta 11
0.11.0 Beta 12
Retrieved
No additional damage is taken when the user reconnects, though it does flash like damage is occurring.