If a sign is placed on the side of any block water will brake it. Now my mob grinder in broken, thanks.
I'm using a Samsung Galaxy s4.
MCPE-12052
Signs
Resolved
Duplicate
0
(Unassigned)
Unconfirmed
Phone - Android - Samsung Other (Specify in description)
Android 5.1
0.13.0
Retrieved
This bug has been fixed and the fix will be released in a future version. Maybe 0.13.1!